Home / 39,847.04-54,990.36-21,943.28

Finding the Fourth Proportional to 39,847.04, 54,990.36 and 21,943.28

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Solution

The fourth proportional to 39,847.04, 54,990.36 and 21,943.28 is: 30,282.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,847.04 : 54,990.36 = 21,943.28 : x
  2. Step 2: Convert to fraction form
    39,847.04/54,990.36 = 21,943.28/x
  3. Step 3: Cross multiply
    39,847.04x = 54,990.36 × 21,943.28
  4. Step 4: Simplify right side
    39,847.04x = 1,206,668,866.78
  5. Step 5: Solve for x
    x = 1,206,668,866.78/39,847.04
  6. Step 6: Final answer
    x = 30,282.52

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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.