Home / 20,297.50-28,010.56-12,338.24

Finding the Fourth Proportional to 20,297.50, 28,010.56 and 12,338.24

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Solution

The fourth proportional to 20,297.50, 28,010.56 and 12,338.24 is: 17,026.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,297.50 : 28,010.56 = 12,338.24 : x
  2. Step 2: Convert to fraction form
    20,297.50/28,010.56 = 12,338.24/x
  3. Step 3: Cross multiply
    20,297.50x = 28,010.56 × 12,338.24
  4. Step 4: Simplify right side
    20,297.50x = 345,601,011.81
  5. Step 5: Solve for x
    x = 345,601,011.81/20,297.50
  6. Step 6: Final answer
    x = 17,026.78

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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.