Home / 22,948.90-31,672.78-12,742.29

Finding the Fourth Proportional to 22,948.90, 31,672.78 and 12,742.29

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Solution

The fourth proportional to 22,948.90, 31,672.78 and 12,742.29 is: 17,586.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,948.90 : 31,672.78 = 12,742.29 : x
  2. Step 2: Convert to fraction form
    22,948.90/31,672.78 = 12,742.29/x
  3. Step 3: Cross multiply
    22,948.90x = 31,672.78 × 12,742.29
  4. Step 4: Simplify right side
    22,948.90x = 403,583,716.01
  5. Step 5: Solve for x
    x = 403,583,716.01/22,948.90
  6. Step 6: Final answer
    x = 17,586.19

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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.