Home / 39,259.84-54,177.03-21,354.82

Finding the Fourth Proportional to 39,259.84, 54,177.03 and 21,354.82

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Solution

The fourth proportional to 39,259.84, 54,177.03 and 21,354.82 is: 29,468.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,259.84 : 54,177.03 = 21,354.82 : x
  2. Step 2: Convert to fraction form
    39,259.84/54,177.03 = 21,354.82/x
  3. Step 3: Cross multiply
    39,259.84x = 54,177.03 × 21,354.82
  4. Step 4: Simplify right side
    39,259.84x = 1,156,940,723.78
  5. Step 5: Solve for x
    x = 1,156,940,723.78/39,259.84
  6. Step 6: Final answer
    x = 29,468.81

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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.