Home / 27,764.14-38,314.42-15,188.89

Finding the Fourth Proportional to 27,764.14, 38,314.42 and 15,188.89

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Solution

The fourth proportional to 27,764.14, 38,314.42 and 15,188.89 is: 20,960.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,764.14 : 38,314.42 = 15,188.89 : x
  2. Step 2: Convert to fraction form
    27,764.14/38,314.42 = 15,188.89/x
  3. Step 3: Cross multiply
    27,764.14x = 38,314.42 × 15,188.89
  4. Step 4: Simplify right side
    27,764.14x = 581,953,510.79
  5. Step 5: Solve for x
    x = 581,953,510.79/27,764.14
  6. Step 6: Final answer
    x = 20,960.62

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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.