Home / 27,799.78-38,363.42-15,052.74

Finding the Fourth Proportional to 27,799.78, 38,363.42 and 15,052.74

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Solution

The fourth proportional to 27,799.78, 38,363.42 and 15,052.74 is: 20,772.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,799.78 : 38,363.42 = 15,052.74 : x
  2. Step 2: Convert to fraction form
    27,799.78/38,363.42 = 15,052.74/x
  3. Step 3: Cross multiply
    27,799.78x = 38,363.42 × 15,052.74
  4. Step 4: Simplify right side
    27,799.78x = 577,474,586.77
  5. Step 5: Solve for x
    x = 577,474,586.77/27,799.78
  6. Step 6: Final answer
    x = 20,772.63

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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.