Home / 31,259.55-43,138.25-17,113.30

Finding the Fourth Proportional to 31,259.55, 43,138.25 and 17,113.30

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Solution

The fourth proportional to 31,259.55, 43,138.25 and 17,113.30 is: 23,616.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,259.55 : 43,138.25 = 17,113.30 : x
  2. Step 2: Convert to fraction form
    31,259.55/43,138.25 = 17,113.30/x
  3. Step 3: Cross multiply
    31,259.55x = 43,138.25 × 17,113.30
  4. Step 4: Simplify right side
    31,259.55x = 738,237,813.73
  5. Step 5: Solve for x
    x = 738,237,813.73/31,259.55
  6. Step 6: Final answer
    x = 23,616.39

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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.