Home / 27,129.68-37,439.92-15,193.52

Finding the Fourth Proportional to 27,129.68, 37,439.92 and 15,193.52

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Solution

The fourth proportional to 27,129.68, 37,439.92 and 15,193.52 is: 20,967.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,129.68 : 37,439.92 = 15,193.52 : x
  2. Step 2: Convert to fraction form
    27,129.68/37,439.92 = 15,193.52/x
  3. Step 3: Cross multiply
    27,129.68x = 37,439.92 × 15,193.52
  4. Step 4: Simplify right side
    27,129.68x = 568,844,173.32
  5. Step 5: Solve for x
    x = 568,844,173.32/27,129.68
  6. Step 6: Final answer
    x = 20,967.60

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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.