Home / 22,089.74-30,481.56-13,135.52

Finding the Fourth Proportional to 22,089.74, 30,481.56 and 13,135.52

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Solution

The fourth proportional to 22,089.74, 30,481.56 and 13,135.52 is: 18,125.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,089.74 : 30,481.56 = 13,135.52 : x
  2. Step 2: Convert to fraction form
    22,089.74/30,481.56 = 13,135.52/x
  3. Step 3: Cross multiply
    22,089.74x = 30,481.56 × 13,135.52
  4. Step 4: Simplify right side
    22,089.74x = 400,390,988.60
  5. Step 5: Solve for x
    x = 400,390,988.60/22,089.74
  6. Step 6: Final answer
    x = 18,125.65

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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.