Home / 40,015.60-55,222.11-22,111.02

Finding the Fourth Proportional to 40,015.60, 55,222.11 and 22,111.02

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Solution

The fourth proportional to 40,015.60, 55,222.11 and 22,111.02 is: 30,513.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,015.60 : 55,222.11 = 22,111.02 : x
  2. Step 2: Convert to fraction form
    40,015.60/55,222.11 = 22,111.02/x
  3. Step 3: Cross multiply
    40,015.60x = 55,222.11 × 22,111.02
  4. Step 4: Simplify right side
    40,015.60x = 1,221,017,178.65
  5. Step 5: Solve for x
    x = 1,221,017,178.65/40,015.60
  6. Step 6: Final answer
    x = 30,513.53

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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.