Home / 31,150.06-42,986.91-17,002.60

Finding the Fourth Proportional to 31,150.06, 42,986.91 and 17,002.60

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Solution

The fourth proportional to 31,150.06, 42,986.91 and 17,002.60 is: 23,463.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,150.06 : 42,986.91 = 17,002.60 : x
  2. Step 2: Convert to fraction form
    31,150.06/42,986.91 = 17,002.60/x
  3. Step 3: Cross multiply
    31,150.06x = 42,986.91 × 17,002.60
  4. Step 4: Simplify right side
    31,150.06x = 730,889,235.97
  5. Step 5: Solve for x
    x = 730,889,235.97/31,150.06
  6. Step 6: Final answer
    x = 23,463.49

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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.