Home / 40,021.31-55,228.65-22,115.93

Finding the Fourth Proportional to 40,021.31, 55,228.65 and 22,115.93

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Solution

The fourth proportional to 40,021.31, 55,228.65 and 22,115.93 is: 30,519.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,021.31 : 55,228.65 = 22,115.93 : x
  2. Step 2: Convert to fraction form
    40,021.31/55,228.65 = 22,115.93/x
  3. Step 3: Cross multiply
    40,021.31x = 55,228.65 × 22,115.93
  4. Step 4: Simplify right side
    40,021.31x = 1,221,432,957.39
  5. Step 5: Solve for x
    x = 1,221,432,957.39/40,021.31
  6. Step 6: Final answer
    x = 30,519.56

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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.