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Finding the Fourth Proportional to 28,250.46, 38,975.04 and 17,490.42

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Solution

The fourth proportional to 28,250.46, 38,975.04 and 17,490.42 is: 24,130.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,250.46 : 38,975.04 = 17,490.42 : x
  2. Step 2: Convert to fraction form
    28,250.46/38,975.04 = 17,490.42/x
  3. Step 3: Cross multiply
    28,250.46x = 38,975.04 × 17,490.42
  4. Step 4: Simplify right side
    28,250.46x = 681,689,819.12
  5. Step 5: Solve for x
    x = 681,689,819.12/28,250.46
  6. Step 6: Final answer
    x = 24,130.22

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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.