Home / 20,567.07-28,382.22-11,135.52

Finding the Fourth Proportional to 20,567.07, 28,382.22 and 11,135.52

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Solution

The fourth proportional to 20,567.07, 28,382.22 and 11,135.52 is: 15,366.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,567.07 : 28,382.22 = 11,135.52 : x
  2. Step 2: Convert to fraction form
    20,567.07/28,382.22 = 11,135.52/x
  3. Step 3: Cross multiply
    20,567.07x = 28,382.22 × 11,135.52
  4. Step 4: Simplify right side
    20,567.07x = 316,050,778.45
  5. Step 5: Solve for x
    x = 316,050,778.45/20,567.07
  6. Step 6: Final answer
    x = 15,366.84

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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.