Home / 20,189.13-30,283.69-6,338.13

Finding the Fourth Proportional to 20,189.13, 30,283.69 and 6,338.13

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Solution

The fourth proportional to 20,189.13, 30,283.69 and 6,338.13 is: 9,507.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189.13 : 30,283.69 = 6,338.13 : x
  2. Step 2: Convert to fraction form
    20,189.13/30,283.69 = 6,338.13/x
  3. Step 3: Cross multiply
    20,189.13x = 30,283.69 × 6,338.13
  4. Step 4: Simplify right side
    20,189.13x = 191,941,964.10
  5. Step 5: Solve for x
    x = 191,941,964.10/20,189.13
  6. Step 6: Final answer
    x = 9,507.19

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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.