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Finding the Fourth Proportional to 18,350.78, 27,482.01 and 10,433.93

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Solution

The fourth proportional to 18,350.78, 27,482.01 and 10,433.93 is: 15,625.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,350.78 : 27,482.01 = 10,433.93 : x
  2. Step 2: Convert to fraction form
    18,350.78/27,482.01 = 10,433.93/x
  3. Step 3: Cross multiply
    18,350.78x = 27,482.01 × 10,433.93
  4. Step 4: Simplify right side
    18,350.78x = 286,745,400.95
  5. Step 5: Solve for x
    x = 286,745,400.95/18,350.78
  6. Step 6: Final answer
    x = 15,625.78

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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.