Home / 22,571.90-31,116.76-15,836.66

Finding the Fourth Proportional to 22,571.90, 31,116.76 and 15,836.66

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Solution

The fourth proportional to 22,571.90, 31,116.76 and 15,836.66 is: 21,831.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,571.90 : 31,116.76 = 15,836.66 : x
  2. Step 2: Convert to fraction form
    22,571.90/31,116.76 = 15,836.66/x
  3. Step 3: Cross multiply
    22,571.90x = 31,116.76 × 15,836.66
  4. Step 4: Simplify right side
    22,571.90x = 492,785,548.42
  5. Step 5: Solve for x
    x = 492,785,548.42/22,571.90
  6. Step 6: Final answer
    x = 21,831.82

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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.