Home / 31,266.08-43,147.68-17,120.24

Finding the Fourth Proportional to 31,266.08, 43,147.68 and 17,120.24

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Solution

The fourth proportional to 31,266.08, 43,147.68 and 17,120.24 is: 23,626.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,266.08 : 43,147.68 = 17,120.24 : x
  2. Step 2: Convert to fraction form
    31,266.08/43,147.68 = 17,120.24/x
  3. Step 3: Cross multiply
    31,266.08x = 43,147.68 × 17,120.24
  4. Step 4: Simplify right side
    31,266.08x = 738,698,637.04
  5. Step 5: Solve for x
    x = 738,698,637.04/31,266.08
  6. Step 6: Final answer
    x = 23,626.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.