Home / 22,671.10-31,281.28-13,716.82

Finding the Fourth Proportional to 22,671.10, 31,281.28 and 13,716.82

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Solution

The fourth proportional to 22,671.10, 31,281.28 and 13,716.82 is: 18,926.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,671.10 : 31,281.28 = 13,716.82 : x
  2. Step 2: Convert to fraction form
    22,671.10/31,281.28 = 13,716.82/x
  3. Step 3: Cross multiply
    22,671.10x = 31,281.28 × 13,716.82
  4. Step 4: Simplify right side
    22,671.10x = 429,079,687.13
  5. Step 5: Solve for x
    x = 429,079,687.13/22,671.10
  6. Step 6: Final answer
    x = 18,926.28

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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.