Home / 39,173.16-54,057.45-21,267.76

Finding the Fourth Proportional to 39,173.16, 54,057.45 and 21,267.76

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Solution

The fourth proportional to 39,173.16, 54,057.45 and 21,267.76 is: 29,348.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,173.16 : 54,057.45 = 21,267.76 : x
  2. Step 2: Convert to fraction form
    39,173.16/54,057.45 = 21,267.76/x
  3. Step 3: Cross multiply
    39,173.16x = 54,057.45 × 21,267.76
  4. Step 4: Simplify right side
    39,173.16x = 1,149,680,872.81
  5. Step 5: Solve for x
    x = 1,149,680,872.81/39,173.16
  6. Step 6: Final answer
    x = 29,348.69

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Half scale
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Double scale
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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.