Home / 39,901.14-55,061.10-21,995.22

Finding the Fourth Proportional to 39,901.14, 55,061.10 and 21,995.22

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Solution

The fourth proportional to 39,901.14, 55,061.10 and 21,995.22 is: 30,352.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,901.14 : 55,061.10 = 21,995.22 : x
  2. Step 2: Convert to fraction form
    39,901.14/55,061.10 = 21,995.22/x
  3. Step 3: Cross multiply
    39,901.14x = 55,061.10 × 21,995.22
  4. Step 4: Simplify right side
    39,901.14x = 1,211,081,007.94
  5. Step 5: Solve for x
    x = 1,211,081,007.94/39,901.14
  6. Step 6: Final answer
    x = 30,352.04

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Double scale
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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.