Home / 27,309.80-37,687.74-15,377.42

Finding the Fourth Proportional to 27,309.80, 37,687.74 and 15,377.42

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Solution

The fourth proportional to 27,309.80, 37,687.74 and 15,377.42 is: 21,220.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,309.80 : 37,687.74 = 15,377.42 : x
  2. Step 2: Convert to fraction form
    27,309.80/37,687.74 = 15,377.42/x
  3. Step 3: Cross multiply
    27,309.80x = 37,687.74 × 15,377.42
  4. Step 4: Simplify right side
    27,309.80x = 579,540,206.83
  5. Step 5: Solve for x
    x = 579,540,206.83/27,309.80
  6. Step 6: Final answer
    x = 21,220.96

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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.