Home / 28,099.98-38,777.94-15,353.25

Finding the Fourth Proportional to 28,099.98, 38,777.94 and 15,353.25

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Solution

The fourth proportional to 28,099.98, 38,777.94 and 15,353.25 is: 21,187.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,099.98 : 38,777.94 = 15,353.25 : x
  2. Step 2: Convert to fraction form
    28,099.98/38,777.94 = 15,353.25/x
  3. Step 3: Cross multiply
    28,099.98x = 38,777.94 × 15,353.25
  4. Step 4: Simplify right side
    28,099.98x = 595,367,407.31
  5. Step 5: Solve for x
    x = 595,367,407.31/28,099.98
  6. Step 6: Final answer
    x = 21,187.47

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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.