Home / 47,389.92-71,082.71-11,851.62

Finding the Fourth Proportional to 47,389.92, 71,082.71 and 11,851.62

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Solution

The fourth proportional to 47,389.92, 71,082.71 and 11,851.62 is: 17,776.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,389.92 : 71,082.71 = 11,851.62 : x
  2. Step 2: Convert to fraction form
    47,389.92/71,082.71 = 11,851.62/x
  3. Step 3: Cross multiply
    47,389.92x = 71,082.71 × 11,851.62
  4. Step 4: Simplify right side
    47,389.92x = 842,445,208.23
  5. Step 5: Solve for x
    x = 842,445,208.23/47,389.92
  6. Step 6: Final answer
    x = 17,776.89

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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.