Home / 20,998.59-28,977.93-11,567.16

Finding the Fourth Proportional to 20,998.59, 28,977.93 and 11,567.16

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Solution

The fourth proportional to 20,998.59, 28,977.93 and 11,567.16 is: 15,962.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,998.59 : 28,977.93 = 11,567.16 : x
  2. Step 2: Convert to fraction form
    20,998.59/28,977.93 = 11,567.16/x
  3. Step 3: Cross multiply
    20,998.59x = 28,977.93 × 11,567.16
  4. Step 4: Simplify right side
    20,998.59x = 335,192,352.78
  5. Step 5: Solve for x
    x = 335,192,352.78/20,998.59
  6. Step 6: Final answer
    x = 15,962.61

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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.