Home / 20,937.22-31,410.96-10,412.21

Finding the Fourth Proportional to 20,937.22, 31,410.96 and 10,412.21

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Solution

The fourth proportional to 20,937.22, 31,410.96 and 10,412.21 is: 15,620.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,937.22 : 31,410.96 = 10,412.21 : x
  2. Step 2: Convert to fraction form
    20,937.22/31,410.96 = 10,412.21/x
  3. Step 3: Cross multiply
    20,937.22x = 31,410.96 × 10,412.21
  4. Step 4: Simplify right side
    20,937.22x = 327,057,551.30
  5. Step 5: Solve for x
    x = 327,057,551.30/20,937.22
  6. Step 6: Final answer
    x = 15,620.87

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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.