Home / 20,191.80-30,271.14-9,095.16

Finding the Fourth Proportional to 20,191.80, 30,271.14 and 9,095.16

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Solution

The fourth proportional to 20,191.80, 30,271.14 and 9,095.16 is: 13,635.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.80 : 30,271.14 = 9,095.16 : x
  2. Step 2: Convert to fraction form
    20,191.80/30,271.14 = 9,095.16/x
  3. Step 3: Cross multiply
    20,191.80x = 30,271.14 × 9,095.16
  4. Step 4: Simplify right side
    20,191.80x = 275,320,861.68
  5. Step 5: Solve for x
    x = 275,320,861.68/20,191.80
  6. Step 6: Final answer
    x = 13,635.28

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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.