Home / 39,410.20-54,385.32-21,504.76

Finding the Fourth Proportional to 39,410.20, 54,385.32 and 21,504.76

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Solution

The fourth proportional to 39,410.20, 54,385.32 and 21,504.76 is: 29,676.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,410.20 : 54,385.32 = 21,504.76 : x
  2. Step 2: Convert to fraction form
    39,410.20/54,385.32 = 21,504.76/x
  3. Step 3: Cross multiply
    39,410.20x = 54,385.32 × 21,504.76
  4. Step 4: Simplify right side
    39,410.20x = 1,169,543,254.12
  5. Step 5: Solve for x
    x = 1,169,543,254.12/39,410.20
  6. Step 6: Final answer
    x = 29,676.16

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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.