Home / 15,427.72-23,138.79-4,331.68

Finding the Fourth Proportional to 15,427.72, 23,138.79 and 4,331.68

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Solution

The fourth proportional to 15,427.72, 23,138.79 and 4,331.68 is: 6,496.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,427.72 : 23,138.79 = 4,331.68 : x
  2. Step 2: Convert to fraction form
    15,427.72/23,138.79 = 4,331.68/x
  3. Step 3: Cross multiply
    15,427.72x = 23,138.79 × 4,331.68
  4. Step 4: Simplify right side
    15,427.72x = 100,229,833.87
  5. Step 5: Solve for x
    x = 100,229,833.87/15,427.72
  6. Step 6: Final answer
    x = 6,496.74

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1.5x scale

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.