Home / 39,953.76-55,131.20-22,047.36

Finding the Fourth Proportional to 39,953.76, 55,131.20 and 22,047.36

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Solution

The fourth proportional to 39,953.76, 55,131.20 and 22,047.36 is: 30,422.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,953.76 : 55,131.20 = 22,047.36 : x
  2. Step 2: Convert to fraction form
    39,953.76/55,131.20 = 22,047.36/x
  3. Step 3: Cross multiply
    39,953.76x = 55,131.20 × 22,047.36
  4. Step 4: Simplify right side
    39,953.76x = 1,215,497,413.63
  5. Step 5: Solve for x
    x = 1,215,497,413.63/39,953.76
  6. Step 6: Final answer
    x = 30,422.60

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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.