Home / 27,405.14-37,819.31-15,306.77

Finding the Fourth Proportional to 27,405.14, 37,819.31 and 15,306.77

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Solution

The fourth proportional to 27,405.14, 37,819.31 and 15,306.77 is: 21,123.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,405.14 : 37,819.31 = 15,306.77 : x
  2. Step 2: Convert to fraction form
    27,405.14/37,819.31 = 15,306.77/x
  3. Step 3: Cross multiply
    27,405.14x = 37,819.31 × 15,306.77
  4. Step 4: Simplify right side
    27,405.14x = 578,891,497.74
  5. Step 5: Solve for x
    x = 578,891,497.74/27,405.14
  6. Step 6: Final answer
    x = 21,123.47

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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.