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Finding the Fourth Proportional to 18,405.05, 27,552.90 and 18,405.05

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Solution

The fourth proportional to 18,405.05, 27,552.90 and 18,405.05 is: 27,552.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405.05 : 27,552.90 = 18,405.05 : x
  2. Step 2: Convert to fraction form
    18,405.05/27,552.90 = 18,405.05/x
  3. Step 3: Cross multiply
    18,405.05x = 27,552.90 × 18,405.05
  4. Step 4: Simplify right side
    18,405.05x = 507,112,502.15
  5. Step 5: Solve for x
    x = 507,112,502.15/18,405.05
  6. Step 6: Final answer
    x = 27,552.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.