Home / 40,016.81-55,222.43-22,111.43

Finding the Fourth Proportional to 40,016.81, 55,222.43 and 22,111.43

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Solution

The fourth proportional to 40,016.81, 55,222.43 and 22,111.43 is: 30,513.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,016.81 : 55,222.43 = 22,111.43 : x
  2. Step 2: Convert to fraction form
    40,016.81/55,222.43 = 22,111.43/x
  3. Step 3: Cross multiply
    40,016.81x = 55,222.43 × 22,111.43
  4. Step 4: Simplify right side
    40,016.81x = 1,221,047,005.90
  5. Step 5: Solve for x
    x = 1,221,047,005.90/40,016.81
  6. Step 6: Final answer
    x = 30,513.35

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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.