Home / 31,528.14-43,508.24-17,188.12

Finding the Fourth Proportional to 31,528.14, 43,508.24 and 17,188.12

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Solution

The fourth proportional to 31,528.14, 43,508.24 and 17,188.12 is: 23,719.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,528.14 : 43,508.24 = 17,188.12 : x
  2. Step 2: Convert to fraction form
    31,528.14/43,508.24 = 17,188.12/x
  3. Step 3: Cross multiply
    31,528.14x = 43,508.24 × 17,188.12
  4. Step 4: Simplify right side
    31,528.14x = 747,824,850.11
  5. Step 5: Solve for x
    x = 747,824,850.11/31,528.14
  6. Step 6: Final answer
    x = 23,719.28

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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.