Home / 20,130.04-30,195.06-5,340.12

Finding the Fourth Proportional to 20,130.04, 30,195.06 and 5,340.12

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Solution

The fourth proportional to 20,130.04, 30,195.06 and 5,340.12 is: 8,010.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130.04 : 30,195.06 = 5,340.12 : x
  2. Step 2: Convert to fraction form
    20,130.04/30,195.06 = 5,340.12/x
  3. Step 3: Cross multiply
    20,130.04x = 30,195.06 × 5,340.12
  4. Step 4: Simplify right side
    20,130.04x = 161,245,243.81
  5. Step 5: Solve for x
    x = 161,245,243.81/20,130.04
  6. Step 6: Final answer
    x = 8,010.18

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Similar ratio
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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.