Home / 28,099.58-38,778.34-15,353.93

Finding the Fourth Proportional to 28,099.58, 38,778.34 and 15,353.93

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Solution

The fourth proportional to 28,099.58, 38,778.34 and 15,353.93 is: 21,188.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,099.58 : 38,778.34 = 15,353.93 : x
  2. Step 2: Convert to fraction form
    28,099.58/38,778.34 = 15,353.93/x
  3. Step 3: Cross multiply
    28,099.58x = 38,778.34 × 15,353.93
  4. Step 4: Simplify right side
    28,099.58x = 595,399,917.88
  5. Step 5: Solve for x
    x = 595,399,917.88/28,099.58
  6. Step 6: Final answer
    x = 21,188.93

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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.