Home / 40,519.84-60,760.88-12,432.66

Finding the Fourth Proportional to 40,519.84, 60,760.88 and 12,432.66

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Solution

The fourth proportional to 40,519.84, 60,760.88 and 12,432.66 is: 18,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,519.84 : 60,760.88 = 12,432.66 : x
  2. Step 2: Convert to fraction form
    40,519.84/60,760.88 = 12,432.66/x
  3. Step 3: Cross multiply
    40,519.84x = 60,760.88 × 12,432.66
  4. Step 4: Simplify right side
    40,519.84x = 755,419,362.34
  5. Step 5: Solve for x
    x = 755,419,362.34/40,519.84
  6. Step 6: Final answer
    x = 18,643.20

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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.