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Finding the Fourth Proportional to 16,919.79, 25,324.49 and 15,303.15

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Solution

The fourth proportional to 16,919.79, 25,324.49 and 15,303.15 is: 22,904.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,919.79 : 25,324.49 = 15,303.15 : x
  2. Step 2: Convert to fraction form
    16,919.79/25,324.49 = 15,303.15/x
  3. Step 3: Cross multiply
    16,919.79x = 25,324.49 × 15,303.15
  4. Step 4: Simplify right side
    16,919.79x = 387,544,392.63
  5. Step 5: Solve for x
    x = 387,544,392.63/16,919.79
  6. Step 6: Final answer
    x = 22,904.80

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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.