Home / 27,707.55-38,236.14-15,132.30

Finding the Fourth Proportional to 27,707.55, 38,236.14 and 15,132.30

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Solution

The fourth proportional to 27,707.55, 38,236.14 and 15,132.30 is: 20,882.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,707.55 : 38,236.14 = 15,132.30 : x
  2. Step 2: Convert to fraction form
    27,707.55/38,236.14 = 15,132.30/x
  3. Step 3: Cross multiply
    27,707.55x = 38,236.14 × 15,132.30
  4. Step 4: Simplify right side
    27,707.55x = 578,600,741.32
  5. Step 5: Solve for x
    x = 578,600,741.32/27,707.55
  6. Step 6: Final answer
    x = 20,882.42

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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.