Home / 23,091.28-31,866.11-12,480.89

Finding the Fourth Proportional to 23,091.28, 31,866.11 and 12,480.89

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Solution

The fourth proportional to 23,091.28, 31,866.11 and 12,480.89 is: 17,223.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,091.28 : 31,866.11 = 12,480.89 : x
  2. Step 2: Convert to fraction form
    23,091.28/31,866.11 = 12,480.89/x
  3. Step 3: Cross multiply
    23,091.28x = 31,866.11 × 12,480.89
  4. Step 4: Simplify right side
    23,091.28x = 397,717,238.71
  5. Step 5: Solve for x
    x = 397,717,238.71/23,091.28
  6. Step 6: Final answer
    x = 17,223.70

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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.