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Finding the Fourth Proportional to 18,007.70, 27,035.85 and 14,314.10

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Solution

The fourth proportional to 18,007.70, 27,035.85 and 14,314.10 is: 21,490.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,007.70 : 27,035.85 = 14,314.10 : x
  2. Step 2: Convert to fraction form
    18,007.70/27,035.85 = 14,314.10/x
  3. Step 3: Cross multiply
    18,007.70x = 27,035.85 × 14,314.10
  4. Step 4: Simplify right side
    18,007.70x = 386,993,860.49
  5. Step 5: Solve for x
    x = 386,993,860.49/18,007.70
  6. Step 6: Final answer
    x = 21,490.47

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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.