Home / 41,981.40-62,953.20-12,389.04

Finding the Fourth Proportional to 41,981.40, 62,953.20 and 12,389.04

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Solution

The fourth proportional to 41,981.40, 62,953.20 and 12,389.04 is: 18,577.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,981.40 : 62,953.20 = 12,389.04 : x
  2. Step 2: Convert to fraction form
    41,981.40/62,953.20 = 12,389.04/x
  3. Step 3: Cross multiply
    41,981.40x = 62,953.20 × 12,389.04
  4. Step 4: Simplify right side
    41,981.40x = 779,929,712.93
  5. Step 5: Solve for x
    x = 779,929,712.93/41,981.40
  6. Step 6: Final answer
    x = 18,577.98

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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.