Home / 39,901.91-55,063.96-21,752.83

Finding the Fourth Proportional to 39,901.91, 55,063.96 and 21,752.83

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Solution

The fourth proportional to 39,901.91, 55,063.96 and 21,752.83 is: 30,018.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,901.91 : 55,063.96 = 21,752.83 : x
  2. Step 2: Convert to fraction form
    39,901.91/55,063.96 = 21,752.83/x
  3. Step 3: Cross multiply
    39,901.91x = 55,063.96 × 21,752.83
  4. Step 4: Simplify right side
    39,901.91x = 1,197,796,576.92
  5. Step 5: Solve for x
    x = 1,197,796,576.92/39,901.91
  6. Step 6: Final answer
    x = 30,018.53

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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.