Home / 20,742.26-31,107-5,947.22

Finding the Fourth Proportional to 20,742.26, 31,107 and 5,947.22

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Solution

The fourth proportional to 20,742.26, 31,107 and 5,947.22 is: 8,919.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,742.26 : 31,107 = 5,947.22 : x
  2. Step 2: Convert to fraction form
    20,742.26/31,107 = 5,947.22/x
  3. Step 3: Cross multiply
    20,742.26x = 31,107 × 5,947.22
  4. Step 4: Simplify right side
    20,742.26x = 185,000,172.54
  5. Step 5: Solve for x
    x = 185,000,172.54/20,742.26
  6. Step 6: Final answer
    x = 8,919.00

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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.