Home / 40,436.91-60,666.28-12,356.20

Finding the Fourth Proportional to 40,436.91, 60,666.28 and 12,356.20

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Solution

The fourth proportional to 40,436.91, 60,666.28 and 12,356.20 is: 18,537.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,436.91 : 60,666.28 = 12,356.20 : x
  2. Step 2: Convert to fraction form
    40,436.91/60,666.28 = 12,356.20/x
  3. Step 3: Cross multiply
    40,436.91x = 60,666.28 × 12,356.20
  4. Step 4: Simplify right side
    40,436.91x = 749,604,385.60
  5. Step 5: Solve for x
    x = 749,604,385.60/40,436.91
  6. Step 6: Final answer
    x = 18,537.63

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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.