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Finding the Fourth Proportional to 28,337.68, 42,506.70 and 8,616.16

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Solution

The fourth proportional to 28,337.68, 42,506.70 and 8,616.16 is: 12,924.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,337.68 : 42,506.70 = 8,616.16 : x
  2. Step 2: Convert to fraction form
    28,337.68/42,506.70 = 8,616.16/x
  3. Step 3: Cross multiply
    28,337.68x = 42,506.70 × 8,616.16
  4. Step 4: Simplify right side
    28,337.68x = 366,244,528.27
  5. Step 5: Solve for x
    x = 366,244,528.27/28,337.68
  6. Step 6: Final answer
    x = 12,924.29

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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.