Home / 40,130.96-60,202.20-12,422.48

Finding the Fourth Proportional to 40,130.96, 60,202.20 and 12,422.48

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Solution

The fourth proportional to 40,130.96, 60,202.20 and 12,422.48 is: 18,635.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,130.96 : 60,202.20 = 12,422.48 : x
  2. Step 2: Convert to fraction form
    40,130.96/60,202.20 = 12,422.48/x
  3. Step 3: Cross multiply
    40,130.96x = 60,202.20 × 12,422.48
  4. Step 4: Simplify right side
    40,130.96x = 747,860,625.46
  5. Step 5: Solve for x
    x = 747,860,625.46/40,130.96
  6. Step 6: Final answer
    x = 18,635.50

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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.