Home / 28,279.47-39,023.39-16,343.58

Finding the Fourth Proportional to 28,279.47, 39,023.39 and 16,343.58

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Solution

The fourth proportional to 28,279.47, 39,023.39 and 16,343.58 is: 22,552.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,279.47 : 39,023.39 = 16,343.58 : x
  2. Step 2: Convert to fraction form
    28,279.47/39,023.39 = 16,343.58/x
  3. Step 3: Cross multiply
    28,279.47x = 39,023.39 × 16,343.58
  4. Step 4: Simplify right side
    28,279.47x = 637,781,937.20
  5. Step 5: Solve for x
    x = 637,781,937.20/28,279.47
  6. Step 6: Final answer
    x = 22,552.82

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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.