Home / 31,258.20-43,136.34-17,111.07

Finding the Fourth Proportional to 31,258.20, 43,136.34 and 17,111.07

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Solution

The fourth proportional to 31,258.20, 43,136.34 and 17,111.07 is: 23,613.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,258.20 : 43,136.34 = 17,111.07 : x
  2. Step 2: Convert to fraction form
    31,258.20/43,136.34 = 17,111.07/x
  3. Step 3: Cross multiply
    31,258.20x = 43,136.34 × 17,111.07
  4. Step 4: Simplify right side
    31,258.20x = 738,108,933.28
  5. Step 5: Solve for x
    x = 738,108,933.28/31,258.20
  6. Step 6: Final answer
    x = 23,613.29

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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.