Home / 22,716.88-31,350.36-12,645.40

Finding the Fourth Proportional to 22,716.88, 31,350.36 and 12,645.40

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Solution

The fourth proportional to 22,716.88, 31,350.36 and 12,645.40 is: 17,451.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,716.88 : 31,350.36 = 12,645.40 : x
  2. Step 2: Convert to fraction form
    22,716.88/31,350.36 = 12,645.40/x
  3. Step 3: Cross multiply
    22,716.88x = 31,350.36 × 12,645.40
  4. Step 4: Simplify right side
    22,716.88x = 396,437,842.34
  5. Step 5: Solve for x
    x = 396,437,842.34/22,716.88
  6. Step 6: Final answer
    x = 17,451.25

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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.