Home / 39,164.36-54,046.85-21,259.35

Finding the Fourth Proportional to 39,164.36, 54,046.85 and 21,259.35

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Solution

The fourth proportional to 39,164.36, 54,046.85 and 21,259.35 is: 29,337.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,164.36 : 54,046.85 = 21,259.35 : x
  2. Step 2: Convert to fraction form
    39,164.36/54,046.85 = 21,259.35/x
  3. Step 3: Cross multiply
    39,164.36x = 54,046.85 × 21,259.35
  4. Step 4: Simplify right side
    39,164.36x = 1,149,000,794.25
  5. Step 5: Solve for x
    x = 1,149,000,794.25/39,164.36
  6. Step 6: Final answer
    x = 29,337.92

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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.