Home / 31,046.96-42,844.68-16,899.80

Finding the Fourth Proportional to 31,046.96, 42,844.68 and 16,899.80

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Solution

The fourth proportional to 31,046.96, 42,844.68 and 16,899.80 is: 23,321.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,046.96 : 42,844.68 = 16,899.80 : x
  2. Step 2: Convert to fraction form
    31,046.96/42,844.68 = 16,899.80/x
  3. Step 3: Cross multiply
    31,046.96x = 42,844.68 × 16,899.80
  4. Step 4: Simplify right side
    31,046.96x = 724,066,523.06
  5. Step 5: Solve for x
    x = 724,066,523.06/31,046.96
  6. Step 6: Final answer
    x = 23,321.66

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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.