Home / 31,419.40-43,358.76-17,272.24

Finding the Fourth Proportional to 31,419.40, 43,358.76 and 17,272.24

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Solution

The fourth proportional to 31,419.40, 43,358.76 and 17,272.24 is: 23,835.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,419.40 : 43,358.76 = 17,272.24 : x
  2. Step 2: Convert to fraction form
    31,419.40/43,358.76 = 17,272.24/x
  3. Step 3: Cross multiply
    31,419.40x = 43,358.76 × 17,272.24
  4. Step 4: Simplify right side
    31,419.40x = 748,902,908.82
  5. Step 5: Solve for x
    x = 748,902,908.82/31,419.40
  6. Step 6: Final answer
    x = 23,835.68

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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.