Home / 39,976.95-55,162.29-22,981.92

Finding the Fourth Proportional to 39,976.95, 55,162.29 and 22,981.92

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Solution

The fourth proportional to 39,976.95, 55,162.29 and 22,981.92 is: 31,711.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,976.95 : 55,162.29 = 22,981.92 : x
  2. Step 2: Convert to fraction form
    39,976.95/55,162.29 = 22,981.92/x
  3. Step 3: Cross multiply
    39,976.95x = 55,162.29 × 22,981.92
  4. Step 4: Simplify right side
    39,976.95x = 1,267,735,335.80
  5. Step 5: Solve for x
    x = 1,267,735,335.80/39,976.95
  6. Step 6: Final answer
    x = 31,711.66

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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.