Home / 31,645.91-43,661.49-21,037.34

Finding the Fourth Proportional to 31,645.91, 43,661.49 and 21,037.34

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Solution

The fourth proportional to 31,645.91, 43,661.49 and 21,037.34 is: 29,024.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,645.91 : 43,661.49 = 21,037.34 : x
  2. Step 2: Convert to fraction form
    31,645.91/43,661.49 = 21,037.34/x
  3. Step 3: Cross multiply
    31,645.91x = 43,661.49 × 21,037.34
  4. Step 4: Simplify right side
    31,645.91x = 918,521,610.04
  5. Step 5: Solve for x
    x = 918,521,610.04/31,645.91
  6. Step 6: Final answer
    x = 29,024.97

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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.