Home / 28,007.67-38,648.84-15,432.42

Finding the Fourth Proportional to 28,007.67, 38,648.84 and 15,432.42

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Solution

The fourth proportional to 28,007.67, 38,648.84 and 15,432.42 is: 21,295.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007.67 : 38,648.84 = 15,432.42 : x
  2. Step 2: Convert to fraction form
    28,007.67/38,648.84 = 15,432.42/x
  3. Step 3: Cross multiply
    28,007.67x = 38,648.84 × 15,432.42
  4. Step 4: Simplify right side
    28,007.67x = 596,445,054.23
  5. Step 5: Solve for x
    x = 596,445,054.23/28,007.67
  6. Step 6: Final answer
    x = 21,295.78

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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.