Home / 20,218.52-27,907.80-12,264.32

Finding the Fourth Proportional to 20,218.52, 27,907.80 and 12,264.32

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Solution

The fourth proportional to 20,218.52, 27,907.80 and 12,264.32 is: 16,928.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,218.52 : 27,907.80 = 12,264.32 : x
  2. Step 2: Convert to fraction form
    20,218.52/27,907.80 = 12,264.32/x
  3. Step 3: Cross multiply
    20,218.52x = 27,907.80 × 12,264.32
  4. Step 4: Simplify right side
    20,218.52x = 342,270,189.70
  5. Step 5: Solve for x
    x = 342,270,189.70/20,218.52
  6. Step 6: Final answer
    x = 16,928.55

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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.