Home / 31,308.64-43,204.31-17,158.75

Finding the Fourth Proportional to 31,308.64, 43,204.31 and 17,158.75

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Solution

The fourth proportional to 31,308.64, 43,204.31 and 17,158.75 is: 23,678.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,308.64 : 43,204.31 = 17,158.75 : x
  2. Step 2: Convert to fraction form
    31,308.64/43,204.31 = 17,158.75/x
  3. Step 3: Cross multiply
    31,308.64x = 43,204.31 × 17,158.75
  4. Step 4: Simplify right side
    31,308.64x = 741,331,954.21
  5. Step 5: Solve for x
    x = 741,331,954.21/31,308.64
  6. Step 6: Final answer
    x = 23,678.19

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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.