Home / 20,799.98-28,685.28-13,733.54

Finding the Fourth Proportional to 20,799.98, 28,685.28 and 13,733.54

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Solution

The fourth proportional to 20,799.98, 28,685.28 and 13,733.54 is: 18,939.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,799.98 : 28,685.28 = 13,733.54 : x
  2. Step 2: Convert to fraction form
    20,799.98/28,685.28 = 13,733.54/x
  3. Step 3: Cross multiply
    20,799.98x = 28,685.28 × 13,733.54
  4. Step 4: Simplify right side
    20,799.98x = 393,950,440.29
  5. Step 5: Solve for x
    x = 393,950,440.29/20,799.98
  6. Step 6: Final answer
    x = 18,939.94

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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.