Home / 20,944.72-28,902.64-11,513.08

Finding the Fourth Proportional to 20,944.72, 28,902.64 and 11,513.08

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Solution

The fourth proportional to 20,944.72, 28,902.64 and 11,513.08 is: 15,887.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.72 : 28,902.64 = 11,513.08 : x
  2. Step 2: Convert to fraction form
    20,944.72/28,902.64 = 11,513.08/x
  3. Step 3: Cross multiply
    20,944.72x = 28,902.64 × 11,513.08
  4. Step 4: Simplify right side
    20,944.72x = 332,758,406.53
  5. Step 5: Solve for x
    x = 332,758,406.53/20,944.72
  6. Step 6: Final answer
    x = 15,887.46

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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.