Home / 31,285.24-43,173.19-17,138.18

Finding the Fourth Proportional to 31,285.24, 43,173.19 and 17,138.18

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Solution

The fourth proportional to 31,285.24, 43,173.19 and 17,138.18 is: 23,650.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,285.24 : 43,173.19 = 17,138.18 : x
  2. Step 2: Convert to fraction form
    31,285.24/43,173.19 = 17,138.18/x
  3. Step 3: Cross multiply
    31,285.24x = 43,173.19 × 17,138.18
  4. Step 4: Simplify right side
    31,285.24x = 739,909,901.39
  5. Step 5: Solve for x
    x = 739,909,901.39/31,285.24
  6. Step 6: Final answer
    x = 23,650.45

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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.