Home / 20,126.50-30,191.42-6,275.50

Finding the Fourth Proportional to 20,126.50, 30,191.42 and 6,275.50

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Solution

The fourth proportional to 20,126.50, 30,191.42 and 6,275.50 is: 9,413.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.50 : 30,191.42 = 6,275.50 : x
  2. Step 2: Convert to fraction form
    20,126.50/30,191.42 = 6,275.50/x
  3. Step 3: Cross multiply
    20,126.50x = 30,191.42 × 6,275.50
  4. Step 4: Simplify right side
    20,126.50x = 189,466,256.21
  5. Step 5: Solve for x
    x = 189,466,256.21/20,126.50
  6. Step 6: Final answer
    x = 9,413.77

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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.