Home / 28,007.51-38,648.54-15,432.26

Finding the Fourth Proportional to 28,007.51, 38,648.54 and 15,432.26

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Solution

The fourth proportional to 28,007.51, 38,648.54 and 15,432.26 is: 21,295.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007.51 : 38,648.54 = 15,432.26 : x
  2. Step 2: Convert to fraction form
    28,007.51/38,648.54 = 15,432.26/x
  3. Step 3: Cross multiply
    28,007.51x = 38,648.54 × 15,432.26
  4. Step 4: Simplify right side
    28,007.51x = 596,434,163.24
  5. Step 5: Solve for x
    x = 596,434,163.24/28,007.51
  6. Step 6: Final answer
    x = 21,295.51

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Half scale
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Double scale
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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.