Home / 20,348.25-30,661.03-16,731.50

Finding the Fourth Proportional to 20,348.25, 30,661.03 and 16,731.50

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Solution

The fourth proportional to 20,348.25, 30,661.03 and 16,731.50 is: 25,211.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348.25 : 30,661.03 = 16,731.50 : x
  2. Step 2: Convert to fraction form
    20,348.25/30,661.03 = 16,731.50/x
  3. Step 3: Cross multiply
    20,348.25x = 30,661.03 × 16,731.50
  4. Step 4: Simplify right side
    20,348.25x = 513,005,023.45
  5. Step 5: Solve for x
    x = 513,005,023.45/20,348.25
  6. Step 6: Final answer
    x = 25,211.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.