Home / 39,718.49-54,811.30-21,569.04

Finding the Fourth Proportional to 39,718.49, 54,811.30 and 21,569.04

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Solution

The fourth proportional to 39,718.49, 54,811.30 and 21,569.04 is: 29,765.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,718.49 : 54,811.30 = 21,569.04 : x
  2. Step 2: Convert to fraction form
    39,718.49/54,811.30 = 21,569.04/x
  3. Step 3: Cross multiply
    39,718.49x = 54,811.30 × 21,569.04
  4. Step 4: Simplify right side
    39,718.49x = 1,182,227,068.23
  5. Step 5: Solve for x
    x = 1,182,227,068.23/39,718.49
  6. Step 6: Final answer
    x = 29,765.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.