Home / 39,259.08-54,178.07-21,354.84

Finding the Fourth Proportional to 39,259.08, 54,178.07 and 21,354.84

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Solution

The fourth proportional to 39,259.08, 54,178.07 and 21,354.84 is: 29,469.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,259.08 : 54,178.07 = 21,354.84 : x
  2. Step 2: Convert to fraction form
    39,259.08/54,178.07 = 21,354.84/x
  3. Step 3: Cross multiply
    39,259.08x = 54,178.07 × 21,354.84
  4. Step 4: Simplify right side
    39,259.08x = 1,156,963,909.58
  5. Step 5: Solve for x
    x = 1,156,963,909.58/39,259.08
  6. Step 6: Final answer
    x = 29,469.97

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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.