Home / 31,417.21-43,358.39-17,272.72

Finding the Fourth Proportional to 31,417.21, 43,358.39 and 17,272.72

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Solution

The fourth proportional to 31,417.21, 43,358.39 and 17,272.72 is: 23,837.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,417.21 : 43,358.39 = 17,272.72 : x
  2. Step 2: Convert to fraction form
    31,417.21/43,358.39 = 17,272.72/x
  3. Step 3: Cross multiply
    31,417.21x = 43,358.39 × 17,272.72
  4. Step 4: Simplify right side
    31,417.21x = 748,917,330.12
  5. Step 5: Solve for x
    x = 748,917,330.12/31,417.21
  6. Step 6: Final answer
    x = 23,837.81

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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.