Home / 22,587.92-31,174.26-13,640.48

Finding the Fourth Proportional to 22,587.92, 31,174.26 and 13,640.48

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Solution

The fourth proportional to 22,587.92, 31,174.26 and 13,640.48 is: 18,825.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,587.92 : 31,174.26 = 13,640.48 : x
  2. Step 2: Convert to fraction form
    22,587.92/31,174.26 = 13,640.48/x
  3. Step 3: Cross multiply
    22,587.92x = 31,174.26 × 13,640.48
  4. Step 4: Simplify right side
    22,587.92x = 425,231,870.04
  5. Step 5: Solve for x
    x = 425,231,870.04/22,587.92
  6. Step 6: Final answer
    x = 18,825.63

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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.