Home / 15,231.94-22,815.51-8,985.22

Finding the Fourth Proportional to 15,231.94, 22,815.51 and 8,985.22

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Solution

The fourth proportional to 15,231.94, 22,815.51 and 8,985.22 is: 13,458.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,231.94 : 22,815.51 = 8,985.22 : x
  2. Step 2: Convert to fraction form
    15,231.94/22,815.51 = 8,985.22/x
  3. Step 3: Cross multiply
    15,231.94x = 22,815.51 × 8,985.22
  4. Step 4: Simplify right side
    15,231.94x = 205,002,376.76
  5. Step 5: Solve for x
    x = 205,002,376.76/15,231.94
  6. Step 6: Final answer
    x = 13,458.72

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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.