Home / 20,042.31-30,030.63-10,672.38

Finding the Fourth Proportional to 20,042.31, 30,030.63 and 10,672.38

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Solution

The fourth proportional to 20,042.31, 30,030.63 and 10,672.38 is: 15,991.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.31 : 30,030.63 = 10,672.38 : x
  2. Step 2: Convert to fraction form
    20,042.31/30,030.63 = 10,672.38/x
  3. Step 3: Cross multiply
    20,042.31x = 30,030.63 × 10,672.38
  4. Step 4: Simplify right side
    20,042.31x = 320,498,295.00
  5. Step 5: Solve for x
    x = 320,498,295.00/20,042.31
  6. Step 6: Final answer
    x = 15,991.09

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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.