Home / 39,984.71-55,178.01-22,080.47

Finding the Fourth Proportional to 39,984.71, 55,178.01 and 22,080.47

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Solution

The fourth proportional to 39,984.71, 55,178.01 and 22,080.47 is: 30,470.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,984.71 : 55,178.01 = 22,080.47 : x
  2. Step 2: Convert to fraction form
    39,984.71/55,178.01 = 22,080.47/x
  3. Step 3: Cross multiply
    39,984.71x = 55,178.01 × 22,080.47
  4. Step 4: Simplify right side
    39,984.71x = 1,218,356,118.57
  5. Step 5: Solve for x
    x = 1,218,356,118.57/39,984.71
  6. Step 6: Final answer
    x = 30,470.55

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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.