Home / 16,415.20-24,618.80-4,727.20

Finding the Fourth Proportional to 16,415.20, 24,618.80 and 4,727.20

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Solution

The fourth proportional to 16,415.20, 24,618.80 and 4,727.20 is: 7,089.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,415.20 : 24,618.80 = 4,727.20 : x
  2. Step 2: Convert to fraction form
    16,415.20/24,618.80 = 4,727.20/x
  3. Step 3: Cross multiply
    16,415.20x = 24,618.80 × 4,727.20
  4. Step 4: Simplify right side
    16,415.20x = 116,377,991.36
  5. Step 5: Solve for x
    x = 116,377,991.36/16,415.20
  6. Step 6: Final answer
    x = 7,089.65

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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.