Home / 39,385.92-59,036.16-19,409.28

Finding the Fourth Proportional to 39,385.92, 59,036.16 and 19,409.28

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Solution

The fourth proportional to 39,385.92, 59,036.16 and 19,409.28 is: 29,092.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,385.92 : 59,036.16 = 19,409.28 : x
  2. Step 2: Convert to fraction form
    39,385.92/59,036.16 = 19,409.28/x
  3. Step 3: Cross multiply
    39,385.92x = 59,036.16 × 19,409.28
  4. Step 4: Simplify right side
    39,385.92x = 1,145,849,359.56
  5. Step 5: Solve for x
    x = 1,145,849,359.56/39,385.92
  6. Step 6: Final answer
    x = 29,092.87

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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.