Home / 27,309.27-37,686.38-15,372.57

Finding the Fourth Proportional to 27,309.27, 37,686.38 and 15,372.57

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Solution

The fourth proportional to 27,309.27, 37,686.38 and 15,372.57 is: 21,213.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,309.27 : 37,686.38 = 15,372.57 : x
  2. Step 2: Convert to fraction form
    27,309.27/37,686.38 = 15,372.57/x
  3. Step 3: Cross multiply
    27,309.27x = 37,686.38 × 15,372.57
  4. Step 4: Simplify right side
    27,309.27x = 579,336,437.73
  5. Step 5: Solve for x
    x = 579,336,437.73/27,309.27
  6. Step 6: Final answer
    x = 21,213.91

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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.