Home / 28,352.82-39,135.48-16,419.08

Finding the Fourth Proportional to 28,352.82, 39,135.48 and 16,419.08

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Solution

The fourth proportional to 28,352.82, 39,135.48 and 16,419.08 is: 22,663.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,352.82 : 39,135.48 = 16,419.08 : x
  2. Step 2: Convert to fraction form
    28,352.82/39,135.48 = 16,419.08/x
  3. Step 3: Cross multiply
    28,352.82x = 39,135.48 × 16,419.08
  4. Step 4: Simplify right side
    28,352.82x = 642,568,576.96
  5. Step 5: Solve for x
    x = 642,568,576.96/28,352.82
  6. Step 6: Final answer
    x = 22,663.30

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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.