Home / 22,689.89-31,284.92-14,729.21

Finding the Fourth Proportional to 22,689.89, 31,284.92 and 14,729.21

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Solution

The fourth proportional to 22,689.89, 31,284.92 and 14,729.21 is: 20,308.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,689.89 : 31,284.92 = 14,729.21 : x
  2. Step 2: Convert to fraction form
    22,689.89/31,284.92 = 14,729.21/x
  3. Step 3: Cross multiply
    22,689.89x = 31,284.92 × 14,729.21
  4. Step 4: Simplify right side
    22,689.89x = 460,801,926.44
  5. Step 5: Solve for x
    x = 460,801,926.44/22,689.89
  6. Step 6: Final answer
    x = 20,308.69

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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.