Home / 31,259.72-43,138.53-17,113.88

Finding the Fourth Proportional to 31,259.72, 43,138.53 and 17,113.88

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Solution

The fourth proportional to 31,259.72, 43,138.53 and 17,113.88 is: 23,617.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,259.72 : 43,138.53 = 17,113.88 : x
  2. Step 2: Convert to fraction form
    31,259.72/43,138.53 = 17,113.88/x
  3. Step 3: Cross multiply
    31,259.72x = 43,138.53 × 17,113.88
  4. Step 4: Simplify right side
    31,259.72x = 738,267,625.80
  5. Step 5: Solve for x
    x = 738,267,625.80/31,259.72
  6. Step 6: Final answer
    x = 23,617.22

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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.