Home / 19,580.72-27,025.80-16,431.44

Finding the Fourth Proportional to 19,580.72, 27,025.80 and 16,431.44

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Solution

The fourth proportional to 19,580.72, 27,025.80 and 16,431.44 is: 22,679.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,580.72 : 27,025.80 = 16,431.44 : x
  2. Step 2: Convert to fraction form
    19,580.72/27,025.80 = 16,431.44/x
  3. Step 3: Cross multiply
    19,580.72x = 27,025.80 × 16,431.44
  4. Step 4: Simplify right side
    19,580.72x = 444,072,811.15
  5. Step 5: Solve for x
    x = 444,072,811.15/19,580.72
  6. Step 6: Final answer
    x = 22,679.08

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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.