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Finding the Fourth Proportional to 15,000.20, 20,739.71 and 14,763.38

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Solution

The fourth proportional to 15,000.20, 20,739.71 and 14,763.38 is: 20,412.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,000.20 : 20,739.71 = 14,763.38 : x
  2. Step 2: Convert to fraction form
    15,000.20/20,739.71 = 14,763.38/x
  3. Step 3: Cross multiply
    15,000.20x = 20,739.71 × 14,763.38
  4. Step 4: Simplify right side
    15,000.20x = 306,188,308.58
  5. Step 5: Solve for x
    x = 306,188,308.58/15,000.20
  6. Step 6: Final answer
    x = 20,412.28

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Double scale
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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.