Home / 31,215.96-43,078.02-17,068.80

Finding the Fourth Proportional to 31,215.96, 43,078.02 and 17,068.80

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Solution

The fourth proportional to 31,215.96, 43,078.02 and 17,068.80 is: 23,554.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,215.96 : 43,078.02 = 17,068.80 : x
  2. Step 2: Convert to fraction form
    31,215.96/43,078.02 = 17,068.80/x
  3. Step 3: Cross multiply
    31,215.96x = 43,078.02 × 17,068.80
  4. Step 4: Simplify right side
    31,215.96x = 735,290,107.78
  5. Step 5: Solve for x
    x = 735,290,107.78/31,215.96
  6. Step 6: Final answer
    x = 23,554.94

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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.