Home / 31,020.10-42,808.28-16,873.04

Finding the Fourth Proportional to 31,020.10, 42,808.28 and 16,873.04

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Solution

The fourth proportional to 31,020.10, 42,808.28 and 16,873.04 is: 23,285.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,020.10 : 42,808.28 = 16,873.04 : x
  2. Step 2: Convert to fraction form
    31,020.10/42,808.28 = 16,873.04/x
  3. Step 3: Cross multiply
    31,020.10x = 42,808.28 × 16,873.04
  4. Step 4: Simplify right side
    31,020.10x = 722,305,820.77
  5. Step 5: Solve for x
    x = 722,305,820.77/31,020.10
  6. Step 6: Final answer
    x = 23,285.09

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.