Home / 36,470.25-54,721.85-20,887.88

Finding the Fourth Proportional to 36,470.25, 54,721.85 and 20,887.88

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Solution

The fourth proportional to 36,470.25, 54,721.85 and 20,887.88 is: 31,341.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,470.25 : 54,721.85 = 20,887.88 : x
  2. Step 2: Convert to fraction form
    36,470.25/54,721.85 = 20,887.88/x
  3. Step 3: Cross multiply
    36,470.25x = 54,721.85 × 20,887.88
  4. Step 4: Simplify right side
    36,470.25x = 1,143,023,058.13
  5. Step 5: Solve for x
    x = 1,143,023,058.13/36,470.25
  6. Step 6: Final answer
    x = 31,341.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.