Home / 39,987.47-55,180.14-22,081.41

Finding the Fourth Proportional to 39,987.47, 55,180.14 and 22,081.41

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Solution

The fourth proportional to 39,987.47, 55,180.14 and 22,081.41 is: 30,470.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,987.47 : 55,180.14 = 22,081.41 : x
  2. Step 2: Convert to fraction form
    39,987.47/55,180.14 = 22,081.41/x
  3. Step 3: Cross multiply
    39,987.47x = 55,180.14 × 22,081.41
  4. Step 4: Simplify right side
    39,987.47x = 1,218,455,212.39
  5. Step 5: Solve for x
    x = 1,218,455,212.39/39,987.47
  6. Step 6: Final answer
    x = 30,470.92

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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.