Home / 22,655.12-31,258.92-13,225.04

Finding the Fourth Proportional to 22,655.12, 31,258.92 and 13,225.04

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Solution

The fourth proportional to 22,655.12, 31,258.92 and 13,225.04 is: 18,247.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,655.12 : 31,258.92 = 13,225.04 : x
  2. Step 2: Convert to fraction form
    22,655.12/31,258.92 = 13,225.04/x
  3. Step 3: Cross multiply
    22,655.12x = 31,258.92 × 13,225.04
  4. Step 4: Simplify right side
    22,655.12x = 413,400,467.36
  5. Step 5: Solve for x
    x = 413,400,467.36/22,655.12
  6. Step 6: Final answer
    x = 18,247.55

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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.