Home / 20,958.51-28,922.49-11,526.87

Finding the Fourth Proportional to 20,958.51, 28,922.49 and 11,526.87

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Solution

The fourth proportional to 20,958.51, 28,922.49 and 11,526.87 is: 15,906.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,958.51 : 28,922.49 = 11,526.87 : x
  2. Step 2: Convert to fraction form
    20,958.51/28,922.49 = 11,526.87/x
  3. Step 3: Cross multiply
    20,958.51x = 28,922.49 × 11,526.87
  4. Step 4: Simplify right side
    20,958.51x = 333,385,782.31
  5. Step 5: Solve for x
    x = 333,385,782.31/20,958.51
  6. Step 6: Final answer
    x = 15,906.94

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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.