Home / 20,774.40-28,667.46-11,341.08

Finding the Fourth Proportional to 20,774.40, 28,667.46 and 11,341.08

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Solution

The fourth proportional to 20,774.40, 28,667.46 and 11,341.08 is: 15,650.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,774.40 : 28,667.46 = 11,341.08 : x
  2. Step 2: Convert to fraction form
    20,774.40/28,667.46 = 11,341.08/x
  3. Step 3: Cross multiply
    20,774.40x = 28,667.46 × 11,341.08
  4. Step 4: Simplify right side
    20,774.40x = 325,119,957.26
  5. Step 5: Solve for x
    x = 325,119,957.26/20,774.40
  6. Step 6: Final answer
    x = 15,650.03

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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.