Home / 40,083.60-55,315.08-22,178.64

Finding the Fourth Proportional to 40,083.60, 55,315.08 and 22,178.64

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Solution

The fourth proportional to 40,083.60, 55,315.08 and 22,178.64 is: 30,606.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,083.60 : 55,315.08 = 22,178.64 : x
  2. Step 2: Convert to fraction form
    40,083.60/55,315.08 = 22,178.64/x
  3. Step 3: Cross multiply
    40,083.60x = 55,315.08 × 22,178.64
  4. Step 4: Simplify right side
    40,083.60x = 1,226,813,245.89
  5. Step 5: Solve for x
    x = 1,226,813,245.89/40,083.60
  6. Step 6: Final answer
    x = 30,606.36

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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.