Home / 22,601.28-31,188.64-12,663.36

Finding the Fourth Proportional to 22,601.28, 31,188.64 and 12,663.36

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Solution

The fourth proportional to 22,601.28, 31,188.64 and 12,663.36 is: 17,474.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,601.28 : 31,188.64 = 12,663.36 : x
  2. Step 2: Convert to fraction form
    22,601.28/31,188.64 = 12,663.36/x
  3. Step 3: Cross multiply
    22,601.28x = 31,188.64 × 12,663.36
  4. Step 4: Simplify right side
    22,601.28x = 394,952,976.23
  5. Step 5: Solve for x
    x = 394,952,976.23/22,601.28
  6. Step 6: Final answer
    x = 17,474.81

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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.