Home / 31,358.05-43,272.17-17,210.79

Finding the Fourth Proportional to 31,358.05, 43,272.17 and 17,210.79

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Solution

The fourth proportional to 31,358.05, 43,272.17 and 17,210.79 is: 23,749.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,358.05 : 43,272.17 = 17,210.79 : x
  2. Step 2: Convert to fraction form
    31,358.05/43,272.17 = 17,210.79/x
  3. Step 3: Cross multiply
    31,358.05x = 43,272.17 × 17,210.79
  4. Step 4: Simplify right side
    31,358.05x = 744,748,252.84
  5. Step 5: Solve for x
    x = 744,748,252.84/31,358.05
  6. Step 6: Final answer
    x = 23,749.83

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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.