Home / 27,315.16-37,687.38-15,377.80

Finding the Fourth Proportional to 27,315.16, 37,687.38 and 15,377.80

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Solution

The fourth proportional to 27,315.16, 37,687.38 and 15,377.80 is: 21,217.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,315.16 : 37,687.38 = 15,377.80 : x
  2. Step 2: Convert to fraction form
    27,315.16/37,687.38 = 15,377.80/x
  3. Step 3: Cross multiply
    27,315.16x = 37,687.38 × 15,377.80
  4. Step 4: Simplify right side
    27,315.16x = 579,548,992.16
  5. Step 5: Solve for x
    x = 579,548,992.16/27,315.16
  6. Step 6: Final answer
    x = 21,217.12

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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.