Home / 31,081.22-42,892.13-16,934.06

Finding the Fourth Proportional to 31,081.22, 42,892.13 and 16,934.06

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Solution

The fourth proportional to 31,081.22, 42,892.13 and 16,934.06 is: 23,369.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,081.22 : 42,892.13 = 16,934.06 : x
  2. Step 2: Convert to fraction form
    31,081.22/42,892.13 = 16,934.06/x
  3. Step 3: Cross multiply
    31,081.22x = 42,892.13 × 16,934.06
  4. Step 4: Simplify right side
    31,081.22x = 726,338,052.51
  5. Step 5: Solve for x
    x = 726,338,052.51/31,081.22
  6. Step 6: Final answer
    x = 23,369.03

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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.