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Finding the Fourth Proportional to 28,873.80, 39,839.04 and 16,296.12

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Solution

The fourth proportional to 28,873.80, 39,839.04 and 16,296.12 is: 22,484.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,873.80 : 39,839.04 = 16,296.12 : x
  2. Step 2: Convert to fraction form
    28,873.80/39,839.04 = 16,296.12/x
  3. Step 3: Cross multiply
    28,873.80x = 39,839.04 × 16,296.12
  4. Step 4: Simplify right side
    28,873.80x = 649,221,776.52
  5. Step 5: Solve for x
    x = 649,221,776.52/28,873.80
  6. Step 6: Final answer
    x = 22,484.81

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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.