Home / 47,561.80-71,371.86-21,288.76

Finding the Fourth Proportional to 47,561.80, 71,371.86 and 21,288.76

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Solution

The fourth proportional to 47,561.80, 71,371.86 and 21,288.76 is: 31,946.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,561.80 : 71,371.86 = 21,288.76 : x
  2. Step 2: Convert to fraction form
    47,561.80/71,371.86 = 21,288.76/x
  3. Step 3: Cross multiply
    47,561.80x = 71,371.86 × 21,288.76
  4. Step 4: Simplify right side
    47,561.80x = 1,519,418,398.29
  5. Step 5: Solve for x
    x = 1,519,418,398.29/47,561.80
  6. Step 6: Final answer
    x = 31,946.19

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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.