Home / 27,321.80-37,707.67-15,387.47

Finding the Fourth Proportional to 27,321.80, 37,707.67 and 15,387.47

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Solution

The fourth proportional to 27,321.80, 37,707.67 and 15,387.47 is: 21,236.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,321.80 : 37,707.67 = 15,387.47 : x
  2. Step 2: Convert to fraction form
    27,321.80/37,707.67 = 15,387.47/x
  3. Step 3: Cross multiply
    27,321.80x = 37,707.67 × 15,387.47
  4. Step 4: Simplify right side
    27,321.80x = 580,225,452.36
  5. Step 5: Solve for x
    x = 580,225,452.36/27,321.80
  6. Step 6: Final answer
    x = 21,236.73

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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.