Home / 47,921.87-71,903.18-19,862.31

Finding the Fourth Proportional to 47,921.87, 71,903.18 and 19,862.31

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Solution

The fourth proportional to 47,921.87, 71,903.18 and 19,862.31 is: 29,801.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,921.87 : 71,903.18 = 19,862.31 : x
  2. Step 2: Convert to fraction form
    47,921.87/71,903.18 = 19,862.31/x
  3. Step 3: Cross multiply
    47,921.87x = 71,903.18 × 19,862.31
  4. Step 4: Simplify right side
    47,921.87x = 1,428,163,151.83
  5. Step 5: Solve for x
    x = 1,428,163,151.83/47,921.87
  6. Step 6: Final answer
    x = 29,801.91

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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.