Home / 20,741.28-31,116.53-5,949.06

Finding the Fourth Proportional to 20,741.28, 31,116.53 and 5,949.06

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Solution

The fourth proportional to 20,741.28, 31,116.53 and 5,949.06 is: 8,924.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.28 : 31,116.53 = 5,949.06 : x
  2. Step 2: Convert to fraction form
    20,741.28/31,116.53 = 5,949.06/x
  3. Step 3: Cross multiply
    20,741.28x = 31,116.53 × 5,949.06
  4. Step 4: Simplify right side
    20,741.28x = 185,114,118.83
  5. Step 5: Solve for x
    x = 185,114,118.83/20,741.28
  6. Step 6: Final answer
    x = 8,924.91

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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.