Home / 20,839.50-31,259.25-6,247.50

Finding the Fourth Proportional to 20,839.50, 31,259.25 and 6,247.50

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Solution

The fourth proportional to 20,839.50, 31,259.25 and 6,247.50 is: 9,371.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,839.50 : 31,259.25 = 6,247.50 : x
  2. Step 2: Convert to fraction form
    20,839.50/31,259.25 = 6,247.50/x
  3. Step 3: Cross multiply
    20,839.50x = 31,259.25 × 6,247.50
  4. Step 4: Simplify right side
    20,839.50x = 195,292,164.38
  5. Step 5: Solve for x
    x = 195,292,164.38/20,839.50
  6. Step 6: Final answer
    x = 9,371.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.