Home / 31,146.67-42,982.23-16,999.48

Finding the Fourth Proportional to 31,146.67, 42,982.23 and 16,999.48

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Solution

The fourth proportional to 31,146.67, 42,982.23 and 16,999.48 is: 23,459.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,146.67 : 42,982.23 = 16,999.48 : x
  2. Step 2: Convert to fraction form
    31,146.67/42,982.23 = 16,999.48/x
  3. Step 3: Cross multiply
    31,146.67x = 42,982.23 × 16,999.48
  4. Step 4: Simplify right side
    31,146.67x = 730,675,559.24
  5. Step 5: Solve for x
    x = 730,675,559.24/31,146.67
  6. Step 6: Final answer
    x = 23,459.19

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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.