Home / 31,610.13-43,628.81-21,562.62

Finding the Fourth Proportional to 31,610.13, 43,628.81 and 21,562.62

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Solution

The fourth proportional to 31,610.13, 43,628.81 and 21,562.62 is: 29,761.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,610.13 : 43,628.81 = 21,562.62 : x
  2. Step 2: Convert to fraction form
    31,610.13/43,628.81 = 21,562.62/x
  3. Step 3: Cross multiply
    31,610.13x = 43,628.81 × 21,562.62
  4. Step 4: Simplify right side
    31,610.13x = 940,751,343.27
  5. Step 5: Solve for x
    x = 940,751,343.27/31,610.13
  6. Step 6: Final answer
    x = 29,761.07

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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.