Home / 20,040.40-27,772.51-19,758.52

Finding the Fourth Proportional to 20,040.40, 27,772.51 and 19,758.52

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Solution

The fourth proportional to 20,040.40, 27,772.51 and 19,758.52 is: 27,381.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.40 : 27,772.51 = 19,758.52 : x
  2. Step 2: Convert to fraction form
    20,040.40/27,772.51 = 19,758.52/x
  3. Step 3: Cross multiply
    20,040.40x = 27,772.51 × 19,758.52
  4. Step 4: Simplify right side
    20,040.40x = 548,743,694.29
  5. Step 5: Solve for x
    x = 548,743,694.29/20,040.40
  6. Step 6: Final answer
    x = 27,381.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.