Home / 39,857.04-55,002.78-21,952.08

Finding the Fourth Proportional to 39,857.04, 55,002.78 and 21,952.08

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Solution

The fourth proportional to 39,857.04, 55,002.78 and 21,952.08 is: 30,293.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,857.04 : 55,002.78 = 21,952.08 : x
  2. Step 2: Convert to fraction form
    39,857.04/55,002.78 = 21,952.08/x
  3. Step 3: Cross multiply
    39,857.04x = 55,002.78 × 21,952.08
  4. Step 4: Simplify right side
    39,857.04x = 1,207,425,426.78
  5. Step 5: Solve for x
    x = 1,207,425,426.78/39,857.04
  6. Step 6: Final answer
    x = 30,293.91

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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.