Home / 31,351.86-43,266.15-17,205.21

Finding the Fourth Proportional to 31,351.86, 43,266.15 and 17,205.21

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Solution

The fourth proportional to 31,351.86, 43,266.15 and 17,205.21 is: 23,743.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,351.86 : 43,266.15 = 17,205.21 : x
  2. Step 2: Convert to fraction form
    31,351.86/43,266.15 = 17,205.21/x
  3. Step 3: Cross multiply
    31,351.86x = 43,266.15 × 17,205.21
  4. Step 4: Simplify right side
    31,351.86x = 744,403,196.64
  5. Step 5: Solve for x
    x = 744,403,196.64/31,351.86
  6. Step 6: Final answer
    x = 23,743.51

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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.