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Finding the Fourth Proportional to 18,381.81, 27,570.10 and 5,900.22

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Solution

The fourth proportional to 18,381.81, 27,570.10 and 5,900.22 is: 8,849.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.81 : 27,570.10 = 5,900.22 : x
  2. Step 2: Convert to fraction form
    18,381.81/27,570.10 = 5,900.22/x
  3. Step 3: Cross multiply
    18,381.81x = 27,570.10 × 5,900.22
  4. Step 4: Simplify right side
    18,381.81x = 162,669,655.42
  5. Step 5: Solve for x
    x = 162,669,655.42/18,381.81
  6. Step 6: Final answer
    x = 8,849.49

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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.