Home / 20,223.13-30,176.49-18,121.74

Finding the Fourth Proportional to 20,223.13, 30,176.49 and 18,121.74

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Solution

The fourth proportional to 20,223.13, 30,176.49 and 18,121.74 is: 27,040.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,223.13 : 30,176.49 = 18,121.74 : x
  2. Step 2: Convert to fraction form
    20,223.13/30,176.49 = 18,121.74/x
  3. Step 3: Cross multiply
    20,223.13x = 30,176.49 × 18,121.74
  4. Step 4: Simplify right side
    20,223.13x = 546,850,392.73
  5. Step 5: Solve for x
    x = 546,850,392.73/20,223.13
  6. Step 6: Final answer
    x = 27,040.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.