Home / 23,151.03-31,948.64-12,540.89

Finding the Fourth Proportional to 23,151.03, 31,948.64 and 12,540.89

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Solution

The fourth proportional to 23,151.03, 31,948.64 and 12,540.89 is: 17,306.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,151.03 : 31,948.64 = 12,540.89 : x
  2. Step 2: Convert to fraction form
    23,151.03/31,948.64 = 12,540.89/x
  3. Step 3: Cross multiply
    23,151.03x = 31,948.64 × 12,540.89
  4. Step 4: Simplify right side
    23,151.03x = 400,664,514.63
  5. Step 5: Solve for x
    x = 400,664,514.63/23,151.03
  6. Step 6: Final answer
    x = 17,306.55

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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.