Home / 25,665.96-38,511.18-13,978.92

Finding the Fourth Proportional to 25,665.96, 38,511.18 and 13,978.92

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Solution

The fourth proportional to 25,665.96, 38,511.18 and 13,978.92 is: 20,975.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,665.96 : 38,511.18 = 13,978.92 : x
  2. Step 2: Convert to fraction form
    25,665.96/38,511.18 = 13,978.92/x
  3. Step 3: Cross multiply
    25,665.96x = 38,511.18 × 13,978.92
  4. Step 4: Simplify right side
    25,665.96x = 538,344,704.33
  5. Step 5: Solve for x
    x = 538,344,704.33/25,665.96
  6. Step 6: Final answer
    x = 20,975.05

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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.