Home / 27,377.20-37,780.04-15,440.56

Finding the Fourth Proportional to 27,377.20, 37,780.04 and 15,440.56

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Solution

The fourth proportional to 27,377.20, 37,780.04 and 15,440.56 is: 21,307.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,377.20 : 37,780.04 = 15,440.56 : x
  2. Step 2: Convert to fraction form
    27,377.20/37,780.04 = 15,440.56/x
  3. Step 3: Cross multiply
    27,377.20x = 37,780.04 × 15,440.56
  4. Step 4: Simplify right side
    27,377.20x = 583,344,974.42
  5. Step 5: Solve for x
    x = 583,344,974.42/27,377.20
  6. Step 6: Final answer
    x = 21,307.69

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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.