Home / 20,296.10-28,009.94-11,343.98

Finding the Fourth Proportional to 20,296.10, 28,009.94 and 11,343.98

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Solution

The fourth proportional to 20,296.10, 28,009.94 and 11,343.98 is: 15,655.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,296.10 : 28,009.94 = 11,343.98 : x
  2. Step 2: Convert to fraction form
    20,296.10/28,009.94 = 11,343.98/x
  3. Step 3: Cross multiply
    20,296.10x = 28,009.94 × 11,343.98
  4. Step 4: Simplify right side
    20,296.10x = 317,744,212.47
  5. Step 5: Solve for x
    x = 317,744,212.47/20,296.10
  6. Step 6: Final answer
    x = 15,655.43

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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.