Home / 20,838.75-31,258.13-6,246.75

Finding the Fourth Proportional to 20,838.75, 31,258.13 and 6,246.75

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Solution

The fourth proportional to 20,838.75, 31,258.13 and 6,246.75 is: 9,370.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,838.75 : 31,258.13 = 6,246.75 : x
  2. Step 2: Convert to fraction form
    20,838.75/31,258.13 = 6,246.75/x
  3. Step 3: Cross multiply
    20,838.75x = 31,258.13 × 6,246.75
  4. Step 4: Simplify right side
    20,838.75x = 195,261,692.34
  5. Step 5: Solve for x
    x = 195,261,692.34/20,838.75
  6. Step 6: Final answer
    x = 9,370.13

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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.