Home / 20,734.19-28,613.96-11,783.21

Finding the Fourth Proportional to 20,734.19, 28,613.96 and 11,783.21

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Solution

The fourth proportional to 20,734.19, 28,613.96 and 11,783.21 is: 16,261.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734.19 : 28,613.96 = 11,783.21 : x
  2. Step 2: Convert to fraction form
    20,734.19/28,613.96 = 11,783.21/x
  3. Step 3: Cross multiply
    20,734.19x = 28,613.96 × 11,783.21
  4. Step 4: Simplify right side
    20,734.19x = 337,164,299.61
  5. Step 5: Solve for x
    x = 337,164,299.61/20,734.19
  6. Step 6: Final answer
    x = 16,261.27

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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.