Home / 39,864.52-55,014.42-21,960.28

Finding the Fourth Proportional to 39,864.52, 55,014.42 and 21,960.28

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Solution

The fourth proportional to 39,864.52, 55,014.42 and 21,960.28 is: 30,305.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,864.52 : 55,014.42 = 21,960.28 : x
  2. Step 2: Convert to fraction form
    39,864.52/55,014.42 = 21,960.28/x
  3. Step 3: Cross multiply
    39,864.52x = 55,014.42 × 21,960.28
  4. Step 4: Simplify right side
    39,864.52x = 1,208,132,067.24
  5. Step 5: Solve for x
    x = 1,208,132,067.24/39,864.52
  6. Step 6: Final answer
    x = 30,305.95

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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.