Home / 28,099.49-38,777.56-15,352.31

Finding the Fourth Proportional to 28,099.49, 38,777.56 and 15,352.31

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Solution

The fourth proportional to 28,099.49, 38,777.56 and 15,352.31 is: 21,186.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,099.49 : 38,777.56 = 15,352.31 : x
  2. Step 2: Convert to fraction form
    28,099.49/38,777.56 = 15,352.31/x
  3. Step 3: Cross multiply
    28,099.49x = 38,777.56 × 15,352.31
  4. Step 4: Simplify right side
    28,099.49x = 595,325,180.73
  5. Step 5: Solve for x
    x = 595,325,180.73/28,099.49
  6. Step 6: Final answer
    x = 21,186.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.