Home / 31,306.12-43,203.02-17,158.86

Finding the Fourth Proportional to 31,306.12, 43,203.02 and 17,158.86

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Solution

The fourth proportional to 31,306.12, 43,203.02 and 17,158.86 is: 23,679.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,306.12 : 43,203.02 = 17,158.86 : x
  2. Step 2: Convert to fraction form
    31,306.12/43,203.02 = 17,158.86/x
  3. Step 3: Cross multiply
    31,306.12x = 43,203.02 × 17,158.86
  4. Step 4: Simplify right side
    31,306.12x = 741,314,571.76
  5. Step 5: Solve for x
    x = 741,314,571.76/31,306.12
  6. Step 6: Final answer
    x = 23,679.54

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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.