Home / 22,943.52-31,660.19-12,870.56

Finding the Fourth Proportional to 22,943.52, 31,660.19 and 12,870.56

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Solution

The fourth proportional to 22,943.52, 31,660.19 and 12,870.56 is: 17,760.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,943.52 : 31,660.19 = 12,870.56 : x
  2. Step 2: Convert to fraction form
    22,943.52/31,660.19 = 12,870.56/x
  3. Step 3: Cross multiply
    22,943.52x = 31,660.19 × 12,870.56
  4. Step 4: Simplify right side
    22,943.52x = 407,484,375.01
  5. Step 5: Solve for x
    x = 407,484,375.01/22,943.52
  6. Step 6: Final answer
    x = 17,760.33

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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.