Home / 28,272.12-42,373.14-15,800.91

Finding the Fourth Proportional to 28,272.12, 42,373.14 and 15,800.91

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Solution

The fourth proportional to 28,272.12, 42,373.14 and 15,800.91 is: 23,681.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,272.12 : 42,373.14 = 15,800.91 : x
  2. Step 2: Convert to fraction form
    28,272.12/42,373.14 = 15,800.91/x
  3. Step 3: Cross multiply
    28,272.12x = 42,373.14 × 15,800.91
  4. Step 4: Simplify right side
    28,272.12x = 669,534,042.28
  5. Step 5: Solve for x
    x = 669,534,042.28/28,272.12
  6. Step 6: Final answer
    x = 23,681.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.