Home / 28,611.71-42,929.91-15,473.36

Finding the Fourth Proportional to 28,611.71, 42,929.91 and 15,473.36

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Solution

The fourth proportional to 28,611.71, 42,929.91 and 15,473.36 is: 23,216.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,611.71 : 42,929.91 = 15,473.36 : x
  2. Step 2: Convert to fraction form
    28,611.71/42,929.91 = 15,473.36/x
  3. Step 3: Cross multiply
    28,611.71x = 42,929.91 × 15,473.36
  4. Step 4: Simplify right side
    28,611.71x = 664,269,952.20
  5. Step 5: Solve for x
    x = 664,269,952.20/28,611.71
  6. Step 6: Final answer
    x = 23,216.72

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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.