Home / 39,643.30-54,707.61-21,737.85

Finding the Fourth Proportional to 39,643.30, 54,707.61 and 21,737.85

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Solution

The fourth proportional to 39,643.30, 54,707.61 and 21,737.85 is: 29,998.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,643.30 : 54,707.61 = 21,737.85 : x
  2. Step 2: Convert to fraction form
    39,643.30/54,707.61 = 21,737.85/x
  3. Step 3: Cross multiply
    39,643.30x = 54,707.61 × 21,737.85
  4. Step 4: Simplify right side
    39,643.30x = 1,189,225,820.04
  5. Step 5: Solve for x
    x = 1,189,225,820.04/39,643.30
  6. Step 6: Final answer
    x = 29,998.15

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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.