Home / 40,417.20-60,611.40-14,122.80

Finding the Fourth Proportional to 40,417.20, 60,611.40 and 14,122.80

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Solution

The fourth proportional to 40,417.20, 60,611.40 and 14,122.80 is: 21,179.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,417.20 : 60,611.40 = 14,122.80 : x
  2. Step 2: Convert to fraction form
    40,417.20/60,611.40 = 14,122.80/x
  3. Step 3: Cross multiply
    40,417.20x = 60,611.40 × 14,122.80
  4. Step 4: Simplify right side
    40,417.20x = 856,002,679.92
  5. Step 5: Solve for x
    x = 856,002,679.92/40,417.20
  6. Step 6: Final answer
    x = 21,179.17

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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.