Home / 36,278.90-54,388.36-13,784.92

Finding the Fourth Proportional to 36,278.90, 54,388.36 and 13,784.92

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Solution

The fourth proportional to 36,278.90, 54,388.36 and 13,784.92 is: 20,665.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,278.90 : 54,388.36 = 13,784.92 : x
  2. Step 2: Convert to fraction form
    36,278.90/54,388.36 = 13,784.92/x
  3. Step 3: Cross multiply
    36,278.90x = 54,388.36 × 13,784.92
  4. Step 4: Simplify right side
    36,278.90x = 749,739,225.05
  5. Step 5: Solve for x
    x = 749,739,225.05/36,278.90
  6. Step 6: Final answer
    x = 20,665.99

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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.