Home / 28,007.42-38,648.49-15,432.17

Finding the Fourth Proportional to 28,007.42, 38,648.49 and 15,432.17

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Solution

The fourth proportional to 28,007.42, 38,648.49 and 15,432.17 is: 21,295.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007.42 : 38,648.49 = 15,432.17 : x
  2. Step 2: Convert to fraction form
    28,007.42/38,648.49 = 15,432.17/x
  3. Step 3: Cross multiply
    28,007.42x = 38,648.49 × 15,432.17
  4. Step 4: Simplify right side
    28,007.42x = 596,430,067.92
  5. Step 5: Solve for x
    x = 596,430,067.92/28,007.42
  6. Step 6: Final answer
    x = 21,295.43

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Half scale
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Double scale
Find fourth proportional to 28,008.42, 38,649.87 and 15,433.17
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.