Home / 20,799.07-28,702.11-11,367.63

Finding the Fourth Proportional to 20,799.07, 28,702.11 and 11,367.63

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Solution

The fourth proportional to 20,799.07, 28,702.11 and 11,367.63 is: 15,687.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,799.07 : 28,702.11 = 11,367.63 : x
  2. Step 2: Convert to fraction form
    20,799.07/28,702.11 = 11,367.63/x
  3. Step 3: Cross multiply
    20,799.07x = 28,702.11 × 11,367.63
  4. Step 4: Simplify right side
    20,799.07x = 326,274,966.70
  5. Step 5: Solve for x
    x = 326,274,966.70/20,799.07
  6. Step 6: Final answer
    x = 15,687.00

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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.