Home / 47,715.33-71,569.35-18,139.80

Finding the Fourth Proportional to 47,715.33, 71,569.35 and 18,139.80

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Solution

The fourth proportional to 47,715.33, 71,569.35 and 18,139.80 is: 27,208.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,715.33 : 71,569.35 = 18,139.80 : x
  2. Step 2: Convert to fraction form
    47,715.33/71,569.35 = 18,139.80/x
  3. Step 3: Cross multiply
    47,715.33x = 71,569.35 × 18,139.80
  4. Step 4: Simplify right side
    47,715.33x = 1,298,253,695.13
  5. Step 5: Solve for x
    x = 1,298,253,695.13/47,715.33
  6. Step 6: Final answer
    x = 27,208.31

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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.