Home / 40,169.31-55,432.48-22,019.66

Finding the Fourth Proportional to 40,169.31, 55,432.48 and 22,019.66

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Solution

The fourth proportional to 40,169.31, 55,432.48 and 22,019.66 is: 30,386.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,169.31 : 55,432.48 = 22,019.66 : x
  2. Step 2: Convert to fraction form
    40,169.31/55,432.48 = 22,019.66/x
  3. Step 3: Cross multiply
    40,169.31x = 55,432.48 × 22,019.66
  4. Step 4: Simplify right side
    40,169.31x = 1,220,604,362.56
  5. Step 5: Solve for x
    x = 1,220,604,362.56/40,169.31
  6. Step 6: Final answer
    x = 30,386.49

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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.