Home / 20,343.99-28,074.05-11,268.98

Finding the Fourth Proportional to 20,343.99, 28,074.05 and 11,268.98

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Solution

The fourth proportional to 20,343.99, 28,074.05 and 11,268.98 is: 15,550.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,343.99 : 28,074.05 = 11,268.98 : x
  2. Step 2: Convert to fraction form
    20,343.99/28,074.05 = 11,268.98/x
  3. Step 3: Cross multiply
    20,343.99x = 28,074.05 × 11,268.98
  4. Step 4: Simplify right side
    20,343.99x = 316,365,753.51
  5. Step 5: Solve for x
    x = 316,365,753.51/20,343.99
  6. Step 6: Final answer
    x = 15,550.82

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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.