Home / 19,816.47-29,717.64-9,284.70

Finding the Fourth Proportional to 19,816.47, 29,717.64 and 9,284.70

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Solution

The fourth proportional to 19,816.47, 29,717.64 and 9,284.70 is: 13,923.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,816.47 : 29,717.64 = 9,284.70 : x
  2. Step 2: Convert to fraction form
    19,816.47/29,717.64 = 9,284.70/x
  3. Step 3: Cross multiply
    19,816.47x = 29,717.64 × 9,284.70
  4. Step 4: Simplify right side
    19,816.47x = 275,919,372.11
  5. Step 5: Solve for x
    x = 275,919,372.11/19,816.47
  6. Step 6: Final answer
    x = 13,923.74

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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.