Home / 28,405.94-42,587.31-15,247.22

Finding the Fourth Proportional to 28,405.94, 42,587.31 and 15,247.22

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Solution

The fourth proportional to 28,405.94, 42,587.31 and 15,247.22 is: 22,859.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405.94 : 42,587.31 = 15,247.22 : x
  2. Step 2: Convert to fraction form
    28,405.94/42,587.31 = 15,247.22/x
  3. Step 3: Cross multiply
    28,405.94x = 42,587.31 × 15,247.22
  4. Step 4: Simplify right side
    28,405.94x = 649,338,084.78
  5. Step 5: Solve for x
    x = 649,338,084.78/28,405.94
  6. Step 6: Final answer
    x = 22,859.24

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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.