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Finding the Fourth Proportional to 19,330.60, 28,995.90 and 14,951.20

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Solution

The fourth proportional to 19,330.60, 28,995.90 and 14,951.20 is: 22,426.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,330.60 : 28,995.90 = 14,951.20 : x
  2. Step 2: Convert to fraction form
    19,330.60/28,995.90 = 14,951.20/x
  3. Step 3: Cross multiply
    19,330.60x = 28,995.90 × 14,951.20
  4. Step 4: Simplify right side
    19,330.60x = 433,523,500.08
  5. Step 5: Solve for x
    x = 433,523,500.08/19,330.60
  6. Step 6: Final answer
    x = 22,426.80

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Similar ratio
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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.