Home / 47,423.62-71,086.23-21,140.74

Finding the Fourth Proportional to 47,423.62, 71,086.23 and 21,140.74

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Solution

The fourth proportional to 47,423.62, 71,086.23 and 21,140.74 is: 31,689.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,423.62 : 71,086.23 = 21,140.74 : x
  2. Step 2: Convert to fraction form
    47,423.62/71,086.23 = 21,140.74/x
  3. Step 3: Cross multiply
    47,423.62x = 71,086.23 × 21,140.74
  4. Step 4: Simplify right side
    47,423.62x = 1,502,815,506.01
  5. Step 5: Solve for x
    x = 1,502,815,506.01/47,423.62
  6. Step 6: Final answer
    x = 31,689.18

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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.