Home / 39,147.86-54,024.12-22,380.86

Finding the Fourth Proportional to 39,147.86, 54,024.12 and 22,380.86

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Solution

The fourth proportional to 39,147.86, 54,024.12 and 22,380.86 is: 30,885.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,147.86 : 54,024.12 = 22,380.86 : x
  2. Step 2: Convert to fraction form
    39,147.86/54,024.12 = 22,380.86/x
  3. Step 3: Cross multiply
    39,147.86x = 54,024.12 × 22,380.86
  4. Step 4: Simplify right side
    39,147.86x = 1,209,106,266.34
  5. Step 5: Solve for x
    x = 1,209,106,266.34/39,147.86
  6. Step 6: Final answer
    x = 30,885.63

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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.