Home / 40,000.20-59,960.50-18,902.88

Finding the Fourth Proportional to 40,000.20, 59,960.50 and 18,902.88

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Solution

The fourth proportional to 40,000.20, 59,960.50 and 18,902.88 is: 28,335.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,000.20 : 59,960.50 = 18,902.88 : x
  2. Step 2: Convert to fraction form
    40,000.20/59,960.50 = 18,902.88/x
  3. Step 3: Cross multiply
    40,000.20x = 59,960.50 × 18,902.88
  4. Step 4: Simplify right side
    40,000.20x = 1,133,426,136.24
  5. Step 5: Solve for x
    x = 1,133,426,136.24/40,000.20
  6. Step 6: Final answer
    x = 28,335.51

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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.