Home / 38,110.90-52,592.92-21,978.13

Finding the Fourth Proportional to 38,110.90, 52,592.92 and 21,978.13

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Solution

The fourth proportional to 38,110.90, 52,592.92 and 21,978.13 is: 30,329.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,110.90 : 52,592.92 = 21,978.13 : x
  2. Step 2: Convert to fraction form
    38,110.90/52,592.92 = 21,978.13/x
  3. Step 3: Cross multiply
    38,110.90x = 52,592.92 × 21,978.13
  4. Step 4: Simplify right side
    38,110.90x = 1,155,894,032.84
  5. Step 5: Solve for x
    x = 1,155,894,032.84/38,110.90
  6. Step 6: Final answer
    x = 30,329.75

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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.