Home / 47,429.11-71,132.73-21,119.50

Finding the Fourth Proportional to 47,429.11, 71,132.73 and 21,119.50

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Solution

The fourth proportional to 47,429.11, 71,132.73 and 21,119.50 is: 31,674.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,429.11 : 71,132.73 = 21,119.50 : x
  2. Step 2: Convert to fraction form
    47,429.11/71,132.73 = 21,119.50/x
  3. Step 3: Cross multiply
    47,429.11x = 71,132.73 × 21,119.50
  4. Step 4: Simplify right side
    47,429.11x = 1,502,287,691.24
  5. Step 5: Solve for x
    x = 1,502,287,691.24/47,429.11
  6. Step 6: Final answer
    x = 31,674.38

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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.