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Finding the Fourth Proportional to 19,752.99, 29,641.14 and 7,281.72

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Solution

The fourth proportional to 19,752.99, 29,641.14 and 7,281.72 is: 10,926.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,752.99 : 29,641.14 = 7,281.72 : x
  2. Step 2: Convert to fraction form
    19,752.99/29,641.14 = 7,281.72/x
  3. Step 3: Cross multiply
    19,752.99x = 29,641.14 × 7,281.72
  4. Step 4: Simplify right side
    19,752.99x = 215,838,481.96
  5. Step 5: Solve for x
    x = 215,838,481.96/19,752.99
  6. Step 6: Final answer
    x = 10,926.88

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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.