Home / 20,242.88-30,359.42-10,377.08

Finding the Fourth Proportional to 20,242.88, 30,359.42 and 10,377.08

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Solution

The fourth proportional to 20,242.88, 30,359.42 and 10,377.08 is: 15,563.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,242.88 : 30,359.42 = 10,377.08 : x
  2. Step 2: Convert to fraction form
    20,242.88/30,359.42 = 10,377.08/x
  3. Step 3: Cross multiply
    20,242.88x = 30,359.42 × 10,377.08
  4. Step 4: Simplify right side
    20,242.88x = 315,042,130.09
  5. Step 5: Solve for x
    x = 315,042,130.09/20,242.88
  6. Step 6: Final answer
    x = 15,563.11

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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.