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Finding the Fourth Proportional to 19,892.70, 29,901.03 and 12,544.38

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Solution

The fourth proportional to 19,892.70, 29,901.03 and 12,544.38 is: 18,855.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,892.70 : 29,901.03 = 12,544.38 : x
  2. Step 2: Convert to fraction form
    19,892.70/29,901.03 = 12,544.38/x
  3. Step 3: Cross multiply
    19,892.70x = 29,901.03 × 12,544.38
  4. Step 4: Simplify right side
    19,892.70x = 375,089,882.71
  5. Step 5: Solve for x
    x = 375,089,882.71/19,892.70
  6. Step 6: Final answer
    x = 18,855.65

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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.