Home / 28,337.70-39,104.46-15,761.64

Finding the Fourth Proportional to 28,337.70, 39,104.46 and 15,761.64

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Solution

The fourth proportional to 28,337.70, 39,104.46 and 15,761.64 is: 21,750.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,337.70 : 39,104.46 = 15,761.64 : x
  2. Step 2: Convert to fraction form
    28,337.70/39,104.46 = 15,761.64/x
  3. Step 3: Cross multiply
    28,337.70x = 39,104.46 × 15,761.64
  4. Step 4: Simplify right side
    28,337.70x = 616,350,420.91
  5. Step 5: Solve for x
    x = 616,350,420.91/28,337.70
  6. Step 6: Final answer
    x = 21,750.19

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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.