Home / 40,981.61-61,451.26-18,775.95

Finding the Fourth Proportional to 40,981.61, 61,451.26 and 18,775.95

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Solution

The fourth proportional to 40,981.61, 61,451.26 and 18,775.95 is: 28,154.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,981.61 : 61,451.26 = 18,775.95 : x
  2. Step 2: Convert to fraction form
    40,981.61/61,451.26 = 18,775.95/x
  3. Step 3: Cross multiply
    40,981.61x = 61,451.26 × 18,775.95
  4. Step 4: Simplify right side
    40,981.61x = 1,153,805,938.83
  5. Step 5: Solve for x
    x = 1,153,805,938.83/40,981.61
  6. Step 6: Final answer
    x = 28,154.24

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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.