Home / 27,139.67-37,452.52-15,203.12

Finding the Fourth Proportional to 27,139.67, 37,452.52 and 15,203.12

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Solution

The fourth proportional to 27,139.67, 37,452.52 and 15,203.12 is: 20,980.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,139.67 : 37,452.52 = 15,203.12 : x
  2. Step 2: Convert to fraction form
    27,139.67/37,452.52 = 15,203.12/x
  3. Step 3: Cross multiply
    27,139.67x = 37,452.52 × 15,203.12
  4. Step 4: Simplify right side
    27,139.67x = 569,394,930.59
  5. Step 5: Solve for x
    x = 569,394,930.59/27,139.67
  6. Step 6: Final answer
    x = 20,980.18

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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.