Home / 20,744.01-31,116.18-8,267.21

Finding the Fourth Proportional to 20,744.01, 31,116.18 and 8,267.21

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Solution

The fourth proportional to 20,744.01, 31,116.18 and 8,267.21 is: 12,400.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.01 : 31,116.18 = 8,267.21 : x
  2. Step 2: Convert to fraction form
    20,744.01/31,116.18 = 8,267.21/x
  3. Step 3: Cross multiply
    20,744.01x = 31,116.18 × 8,267.21
  4. Step 4: Simplify right side
    20,744.01x = 257,243,994.46
  5. Step 5: Solve for x
    x = 257,243,994.46/20,744.01
  6. Step 6: Final answer
    x = 12,400.88

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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.