Home / 31,263.06-43,142.04-17,115.06

Finding the Fourth Proportional to 31,263.06, 43,142.04 and 17,115.06

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Solution

The fourth proportional to 31,263.06, 43,142.04 and 17,115.06 is: 23,618.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,263.06 : 43,142.04 = 17,115.06 : x
  2. Step 2: Convert to fraction form
    31,263.06/43,142.04 = 17,115.06/x
  3. Step 3: Cross multiply
    31,263.06x = 43,142.04 × 17,115.06
  4. Step 4: Simplify right side
    31,263.06x = 738,378,603.12
  5. Step 5: Solve for x
    x = 738,378,603.12/31,263.06
  6. Step 6: Final answer
    x = 23,618.24

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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.