Home / 40,215.20-60,334.96-12,513.44

Finding the Fourth Proportional to 40,215.20, 60,334.96 and 12,513.44

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Solution

The fourth proportional to 40,215.20, 60,334.96 and 12,513.44 is: 18,773.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,215.20 : 60,334.96 = 12,513.44 : x
  2. Step 2: Convert to fraction form
    40,215.20/60,334.96 = 12,513.44/x
  3. Step 3: Cross multiply
    40,215.20x = 60,334.96 × 12,513.44
  4. Step 4: Simplify right side
    40,215.20x = 754,997,901.86
  5. Step 5: Solve for x
    x = 754,997,901.86/40,215.20
  6. Step 6: Final answer
    x = 18,773.94

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1.5x scale

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.