Home / 40,135.08-55,384.84-22,230.84

Finding the Fourth Proportional to 40,135.08, 55,384.84 and 22,230.84

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Solution

The fourth proportional to 40,135.08, 55,384.84 and 22,230.84 is: 30,677.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,135.08 : 55,384.84 = 22,230.84 : x
  2. Step 2: Convert to fraction form
    40,135.08/55,384.84 = 22,230.84/x
  3. Step 3: Cross multiply
    40,135.08x = 55,384.84 × 22,230.84
  4. Step 4: Simplify right side
    40,135.08x = 1,231,251,516.47
  5. Step 5: Solve for x
    x = 1,231,251,516.47/40,135.08
  6. Step 6: Final answer
    x = 30,677.69

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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.