Home / 22,850.55-31,531.79-13,290.63

Finding the Fourth Proportional to 22,850.55, 31,531.79 and 13,290.63

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Solution

The fourth proportional to 22,850.55, 31,531.79 and 13,290.63 is: 18,339.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,850.55 : 31,531.79 = 13,290.63 : x
  2. Step 2: Convert to fraction form
    22,850.55/31,531.79 = 13,290.63/x
  3. Step 3: Cross multiply
    22,850.55x = 31,531.79 × 13,290.63
  4. Step 4: Simplify right side
    22,850.55x = 419,077,287.67
  5. Step 5: Solve for x
    x = 419,077,287.67/22,850.55
  6. Step 6: Final answer
    x = 18,339.92

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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.