Home / 39,490.96-54,498.99-21,587.18

Finding the Fourth Proportional to 39,490.96, 54,498.99 and 21,587.18

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Solution

The fourth proportional to 39,490.96, 54,498.99 and 21,587.18 is: 29,791.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,490.96 : 54,498.99 = 21,587.18 : x
  2. Step 2: Convert to fraction form
    39,490.96/54,498.99 = 21,587.18/x
  3. Step 3: Cross multiply
    39,490.96x = 54,498.99 × 21,587.18
  4. Step 4: Simplify right side
    39,490.96x = 1,176,479,506.95
  5. Step 5: Solve for x
    x = 1,176,479,506.95/39,490.96
  6. Step 6: Final answer
    x = 29,791.11

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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.