Home / 31,068.14-42,874.08-16,921.04

Finding the Fourth Proportional to 31,068.14, 42,874.08 and 16,921.04

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Solution

The fourth proportional to 31,068.14, 42,874.08 and 16,921.04 is: 23,351.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,068.14 : 42,874.08 = 16,921.04 : x
  2. Step 2: Convert to fraction form
    31,068.14/42,874.08 = 16,921.04/x
  3. Step 3: Cross multiply
    31,068.14x = 42,874.08 × 16,921.04
  4. Step 4: Simplify right side
    31,068.14x = 725,474,022.64
  5. Step 5: Solve for x
    x = 725,474,022.64/31,068.14
  6. Step 6: Final answer
    x = 23,351.06

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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.