Home / 20,774.60-28,667.84-11,341.34

Finding the Fourth Proportional to 20,774.60, 28,667.84 and 11,341.34

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Solution

The fourth proportional to 20,774.60, 28,667.84 and 11,341.34 is: 15,650.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,774.60 : 28,667.84 = 11,341.34 : x
  2. Step 2: Convert to fraction form
    20,774.60/28,667.84 = 11,341.34/x
  3. Step 3: Cross multiply
    20,774.60x = 28,667.84 × 11,341.34
  4. Step 4: Simplify right side
    20,774.60x = 325,131,720.51
  5. Step 5: Solve for x
    x = 325,131,720.51/20,774.60
  6. Step 6: Final answer
    x = 15,650.44

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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.