Home / 15,149.31-20,884.12-10,036.27

Finding the Fourth Proportional to 15,149.31, 20,884.12 and 10,036.27

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Solution

The fourth proportional to 15,149.31, 20,884.12 and 10,036.27 is: 13,835.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,149.31 : 20,884.12 = 10,036.27 : x
  2. Step 2: Convert to fraction form
    15,149.31/20,884.12 = 10,036.27/x
  3. Step 3: Cross multiply
    15,149.31x = 20,884.12 × 10,036.27
  4. Step 4: Simplify right side
    15,149.31x = 209,598,667.03
  5. Step 5: Solve for x
    x = 209,598,667.03/15,149.31
  6. Step 6: Final answer
    x = 13,835.53

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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.