Home / 28,410.89-42,628.63-15,247.88

Finding the Fourth Proportional to 28,410.89, 42,628.63 and 15,247.88

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Solution

The fourth proportional to 28,410.89, 42,628.63 and 15,247.88 is: 22,878.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,410.89 : 42,628.63 = 15,247.88 : x
  2. Step 2: Convert to fraction form
    28,410.89/42,628.63 = 15,247.88/x
  3. Step 3: Cross multiply
    28,410.89x = 42,628.63 × 15,247.88
  4. Step 4: Simplify right side
    28,410.89x = 649,996,234.80
  5. Step 5: Solve for x
    x = 649,996,234.80/28,410.89
  6. Step 6: Final answer
    x = 22,878.42

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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.