Home / 27,377.70-37,780.36-15,278.52

Finding the Fourth Proportional to 27,377.70, 37,780.36 and 15,278.52

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Solution

The fourth proportional to 27,377.70, 37,780.36 and 15,278.52 is: 21,083.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,377.70 : 37,780.36 = 15,278.52 : x
  2. Step 2: Convert to fraction form
    27,377.70/37,780.36 = 15,278.52/x
  3. Step 3: Cross multiply
    27,377.70x = 37,780.36 × 15,278.52
  4. Step 4: Simplify right side
    27,377.70x = 577,228,089.35
  5. Step 5: Solve for x
    x = 577,228,089.35/27,377.70
  6. Step 6: Final answer
    x = 21,083.88

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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.