Home / 38,961.92-53,767.46-21,056.90

Finding the Fourth Proportional to 38,961.92, 53,767.46 and 21,056.90

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Solution

The fourth proportional to 38,961.92, 53,767.46 and 21,056.90 is: 29,058.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,961.92 : 53,767.46 = 21,056.90 : x
  2. Step 2: Convert to fraction form
    38,961.92/53,767.46 = 21,056.90/x
  3. Step 3: Cross multiply
    38,961.92x = 53,767.46 × 21,056.90
  4. Step 4: Simplify right side
    38,961.92x = 1,132,176,028.47
  5. Step 5: Solve for x
    x = 1,132,176,028.47/38,961.92
  6. Step 6: Final answer
    x = 29,058.53

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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.