Home / 22,716.56-31,341.56-13,761.20

Finding the Fourth Proportional to 22,716.56, 31,341.56 and 13,761.20

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Solution

The fourth proportional to 22,716.56, 31,341.56 and 13,761.20 is: 18,986.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,716.56 : 31,341.56 = 13,761.20 : x
  2. Step 2: Convert to fraction form
    22,716.56/31,341.56 = 13,761.20/x
  3. Step 3: Cross multiply
    22,716.56x = 31,341.56 × 13,761.20
  4. Step 4: Simplify right side
    22,716.56x = 431,297,475.47
  5. Step 5: Solve for x
    x = 431,297,475.47/22,716.56
  6. Step 6: Final answer
    x = 18,986.04

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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.