Home / 36,420.78-54,670.05-15,658.86

Finding the Fourth Proportional to 36,420.78, 54,670.05 and 15,658.86

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Solution

The fourth proportional to 36,420.78, 54,670.05 and 15,658.86 is: 23,505.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,420.78 : 54,670.05 = 15,658.86 : x
  2. Step 2: Convert to fraction form
    36,420.78/54,670.05 = 15,658.86/x
  3. Step 3: Cross multiply
    36,420.78x = 54,670.05 × 15,658.86
  4. Step 4: Simplify right side
    36,420.78x = 856,070,659.14
  5. Step 5: Solve for x
    x = 856,070,659.14/36,420.78
  6. Step 6: Final answer
    x = 23,505.01

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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.