Home / 40,436.41-60,665.53-12,355.70

Finding the Fourth Proportional to 40,436.41, 60,665.53 and 12,355.70

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Solution

The fourth proportional to 40,436.41, 60,665.53 and 12,355.70 is: 18,536.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,436.41 : 60,665.53 = 12,355.70 : x
  2. Step 2: Convert to fraction form
    40,436.41/60,665.53 = 12,355.70/x
  3. Step 3: Cross multiply
    40,436.41x = 60,665.53 × 12,355.70
  4. Step 4: Simplify right side
    40,436.41x = 749,564,754.80
  5. Step 5: Solve for x
    x = 749,564,754.80/40,436.41
  6. Step 6: Final answer
    x = 18,536.88

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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.