Home / 40,519.53-60,780.51-12,438.45

Finding the Fourth Proportional to 40,519.53, 60,780.51 and 12,438.45

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Solution

The fourth proportional to 40,519.53, 60,780.51 and 12,438.45 is: 18,658.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,519.53 : 60,780.51 = 12,438.45 : x
  2. Step 2: Convert to fraction form
    40,519.53/60,780.51 = 12,438.45/x
  3. Step 3: Cross multiply
    40,519.53x = 60,780.51 × 12,438.45
  4. Step 4: Simplify right side
    40,519.53x = 756,015,334.61
  5. Step 5: Solve for x
    x = 756,015,334.61/40,519.53
  6. Step 6: Final answer
    x = 18,658.05

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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.