Home / 19,250.28-28,876.50-5,400.36

Finding the Fourth Proportional to 19,250.28, 28,876.50 and 5,400.36

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Solution

The fourth proportional to 19,250.28, 28,876.50 and 5,400.36 is: 8,100.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,250.28 : 28,876.50 = 5,400.36 : x
  2. Step 2: Convert to fraction form
    19,250.28/28,876.50 = 5,400.36/x
  3. Step 3: Cross multiply
    19,250.28x = 28,876.50 × 5,400.36
  4. Step 4: Simplify right side
    19,250.28x = 155,943,495.54
  5. Step 5: Solve for x
    x = 155,943,495.54/19,250.28
  6. Step 6: Final answer
    x = 8,100.84

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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.