Home / 20,270.92-30,359.40-19,570.36

Finding the Fourth Proportional to 20,270.92, 30,359.40 and 19,570.36

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Solution

The fourth proportional to 20,270.92, 30,359.40 and 19,570.36 is: 29,310.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,270.92 : 30,359.40 = 19,570.36 : x
  2. Step 2: Convert to fraction form
    20,270.92/30,359.40 = 19,570.36/x
  3. Step 3: Cross multiply
    20,270.92x = 30,359.40 × 19,570.36
  4. Step 4: Simplify right side
    20,270.92x = 594,144,387.38
  5. Step 5: Solve for x
    x = 594,144,387.38/20,270.92
  6. Step 6: Final answer
    x = 29,310.18

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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.