Home / 39,960.59-55,145.49-22,055.47

Finding the Fourth Proportional to 39,960.59, 55,145.49 and 22,055.47

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Solution

The fourth proportional to 39,960.59, 55,145.49 and 22,055.47 is: 30,436.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,960.59 : 55,145.49 = 22,055.47 : x
  2. Step 2: Convert to fraction form
    39,960.59/55,145.49 = 22,055.47/x
  3. Step 3: Cross multiply
    39,960.59x = 55,145.49 × 22,055.47
  4. Step 4: Simplify right side
    39,960.59x = 1,216,259,424.60
  5. Step 5: Solve for x
    x = 1,216,259,424.60/39,960.59
  6. Step 6: Final answer
    x = 30,436.48

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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.