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Finding the Fourth Proportional to 28,229.97, 42,347.04 and 9,509.92

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Solution

The fourth proportional to 28,229.97, 42,347.04 and 9,509.92 is: 14,265.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,229.97 : 42,347.04 = 9,509.92 : x
  2. Step 2: Convert to fraction form
    28,229.97/42,347.04 = 9,509.92/x
  3. Step 3: Cross multiply
    28,229.97x = 42,347.04 × 9,509.92
  4. Step 4: Simplify right side
    28,229.97x = 402,716,962.64
  5. Step 5: Solve for x
    x = 402,716,962.64/28,229.97
  6. Step 6: Final answer
    x = 14,265.58

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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.