Home / 20,795.50-28,697.79-11,364.04

Finding the Fourth Proportional to 20,795.50, 28,697.79 and 11,364.04

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Solution

The fourth proportional to 20,795.50, 28,697.79 and 11,364.04 is: 15,682.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,795.50 : 28,697.79 = 11,364.04 : x
  2. Step 2: Convert to fraction form
    20,795.50/28,697.79 = 11,364.04/x
  3. Step 3: Cross multiply
    20,795.50x = 28,697.79 × 11,364.04
  4. Step 4: Simplify right side
    20,795.50x = 326,122,833.47
  5. Step 5: Solve for x
    x = 326,122,833.47/20,795.50
  6. Step 6: Final answer
    x = 15,682.38

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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.