Home / 28,099.14-42,116.31-10,557.78

Finding the Fourth Proportional to 28,099.14, 42,116.31 and 10,557.78

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Solution

The fourth proportional to 28,099.14, 42,116.31 and 10,557.78 is: 15,824.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,099.14 : 42,116.31 = 10,557.78 : x
  2. Step 2: Convert to fraction form
    28,099.14/42,116.31 = 10,557.78/x
  3. Step 3: Cross multiply
    28,099.14x = 42,116.31 × 10,557.78
  4. Step 4: Simplify right side
    28,099.14x = 444,654,735.39
  5. Step 5: Solve for x
    x = 444,654,735.39/28,099.14
  6. Step 6: Final answer
    x = 15,824.50

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1.5x scale

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.