Home / 20,012.10-29,991.31-15,575.12

Finding the Fourth Proportional to 20,012.10, 29,991.31 and 15,575.12

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Solution

The fourth proportional to 20,012.10, 29,991.31 and 15,575.12 is: 23,341.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,012.10 : 29,991.31 = 15,575.12 : x
  2. Step 2: Convert to fraction form
    20,012.10/29,991.31 = 15,575.12/x
  3. Step 3: Cross multiply
    20,012.10x = 29,991.31 × 15,575.12
  4. Step 4: Simplify right side
    20,012.10x = 467,118,252.21
  5. Step 5: Solve for x
    x = 467,118,252.21/20,012.10
  6. Step 6: Final answer
    x = 23,341.79

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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.