Home / 39,543.24-54,569.52-21,393.90

Finding the Fourth Proportional to 39,543.24, 54,569.52 and 21,393.90

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Solution

The fourth proportional to 39,543.24, 54,569.52 and 21,393.90 is: 29,523.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,543.24 : 54,569.52 = 21,393.90 : x
  2. Step 2: Convert to fraction form
    39,543.24/54,569.52 = 21,393.90/x
  3. Step 3: Cross multiply
    39,543.24x = 54,569.52 × 21,393.90
  4. Step 4: Simplify right side
    39,543.24x = 1,167,454,847.92
  5. Step 5: Solve for x
    x = 1,167,454,847.92/39,543.24
  6. Step 6: Final answer
    x = 29,523.50

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1.5x scale

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.