Home / 27,377.34-37,778.45-15,443.61

Finding the Fourth Proportional to 27,377.34, 37,778.45 and 15,443.61

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Solution

The fourth proportional to 27,377.34, 37,778.45 and 15,443.61 is: 21,310.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,377.34 : 37,778.45 = 15,443.61 : x
  2. Step 2: Convert to fraction form
    27,377.34/37,778.45 = 15,443.61/x
  3. Step 3: Cross multiply
    27,377.34x = 37,778.45 × 15,443.61
  4. Step 4: Simplify right side
    27,377.34x = 583,435,570.99
  5. Step 5: Solve for x
    x = 583,435,570.99/27,377.34
  6. Step 6: Final answer
    x = 21,310.89

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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.