Home / 27,311.16-37,689.66-15,372.18

Finding the Fourth Proportional to 27,311.16, 37,689.66 and 15,372.18

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Solution

The fourth proportional to 27,311.16, 37,689.66 and 15,372.18 is: 21,213.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,311.16 : 37,689.66 = 15,372.18 : x
  2. Step 2: Convert to fraction form
    27,311.16/37,689.66 = 15,372.18/x
  3. Step 3: Cross multiply
    27,311.16x = 37,689.66 × 15,372.18
  4. Step 4: Simplify right side
    27,311.16x = 579,372,237.66
  5. Step 5: Solve for x
    x = 579,372,237.66/27,311.16
  6. Step 6: Final answer
    x = 21,213.75

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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.