Home / 39,984.28-55,178.01-22,080.50

Finding the Fourth Proportional to 39,984.28, 55,178.01 and 22,080.50

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Solution

The fourth proportional to 39,984.28, 55,178.01 and 22,080.50 is: 30,470.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,984.28 : 55,178.01 = 22,080.50 : x
  2. Step 2: Convert to fraction form
    39,984.28/55,178.01 = 22,080.50/x
  3. Step 3: Cross multiply
    39,984.28x = 55,178.01 × 22,080.50
  4. Step 4: Simplify right side
    39,984.28x = 1,218,357,980.83
  5. Step 5: Solve for x
    x = 1,218,357,980.83/39,984.28
  6. Step 6: Final answer
    x = 30,470.92

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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.