Home / 28,099.27-38,777.78-15,524.83

Finding the Fourth Proportional to 28,099.27, 38,777.78 and 15,524.83

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Solution

The fourth proportional to 28,099.27, 38,777.78 and 15,524.83 is: 21,424.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,099.27 : 38,777.78 = 15,524.83 : x
  2. Step 2: Convert to fraction form
    28,099.27/38,777.78 = 15,524.83/x
  3. Step 3: Cross multiply
    28,099.27x = 38,777.78 × 15,524.83
  4. Step 4: Simplify right side
    28,099.27x = 602,018,442.28
  5. Step 5: Solve for x
    x = 602,018,442.28/28,099.27
  6. Step 6: Final answer
    x = 21,424.70

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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.