Home / 28,734.43-39,644.28-17,400.30

Finding the Fourth Proportional to 28,734.43, 39,644.28 and 17,400.30

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Solution

The fourth proportional to 28,734.43, 39,644.28 and 17,400.30 is: 24,006.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,734.43 : 39,644.28 = 17,400.30 : x
  2. Step 2: Convert to fraction form
    28,734.43/39,644.28 = 17,400.30/x
  3. Step 3: Cross multiply
    28,734.43x = 39,644.28 × 17,400.30
  4. Step 4: Simplify right side
    28,734.43x = 689,822,365.28
  5. Step 5: Solve for x
    x = 689,822,365.28/28,734.43
  6. Step 6: Final answer
    x = 24,006.82

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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.