Home / 31,215.25-43,077.05-17,068.20

Finding the Fourth Proportional to 31,215.25, 43,077.05 and 17,068.20

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Solution

The fourth proportional to 31,215.25, 43,077.05 and 17,068.20 is: 23,554.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,215.25 : 43,077.05 = 17,068.20 : x
  2. Step 2: Convert to fraction form
    31,215.25/43,077.05 = 17,068.20/x
  3. Step 3: Cross multiply
    31,215.25x = 43,077.05 × 17,068.20
  4. Step 4: Simplify right side
    31,215.25x = 735,247,704.81
  5. Step 5: Solve for x
    x = 735,247,704.81/31,215.25
  6. Step 6: Final answer
    x = 23,554.12

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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.