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Finding the Fourth Proportional to 28,444.62, 42,652.88 and 8,718.42

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Solution

The fourth proportional to 28,444.62, 42,652.88 and 8,718.42 is: 13,073.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,444.62 : 42,652.88 = 8,718.42 : x
  2. Step 2: Convert to fraction form
    28,444.62/42,652.88 = 8,718.42/x
  3. Step 3: Cross multiply
    28,444.62x = 42,652.88 × 8,718.42
  4. Step 4: Simplify right side
    28,444.62x = 371,865,722.05
  5. Step 5: Solve for x
    x = 371,865,722.05/28,444.62
  6. Step 6: Final answer
    x = 13,073.32

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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.