Home / 23,180.76-31,985.17-13,622.20

Finding the Fourth Proportional to 23,180.76, 31,985.17 and 13,622.20

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Solution

The fourth proportional to 23,180.76, 31,985.17 and 13,622.20 is: 18,796.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,180.76 : 31,985.17 = 13,622.20 : x
  2. Step 2: Convert to fraction form
    23,180.76/31,985.17 = 13,622.20/x
  3. Step 3: Cross multiply
    23,180.76x = 31,985.17 × 13,622.20
  4. Step 4: Simplify right side
    23,180.76x = 435,708,382.77
  5. Step 5: Solve for x
    x = 435,708,382.77/23,180.76
  6. Step 6: Final answer
    x = 18,796.12

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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.