Home / 22,809.88-31,478.28-12,737.95

Finding the Fourth Proportional to 22,809.88, 31,478.28 and 12,737.95

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Solution

The fourth proportional to 22,809.88, 31,478.28 and 12,737.95 is: 17,578.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,809.88 : 31,478.28 = 12,737.95 : x
  2. Step 2: Convert to fraction form
    22,809.88/31,478.28 = 12,737.95/x
  3. Step 3: Cross multiply
    22,809.88x = 31,478.28 × 12,737.95
  4. Step 4: Simplify right side
    22,809.88x = 400,968,756.73
  5. Step 5: Solve for x
    x = 400,968,756.73/22,809.88
  6. Step 6: Final answer
    x = 17,578.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.