Home / 20,109.52-30,170.76-14,261.32

Finding the Fourth Proportional to 20,109.52, 30,170.76 and 14,261.32

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Solution

The fourth proportional to 20,109.52, 30,170.76 and 14,261.32 is: 21,396.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,109.52 : 30,170.76 = 14,261.32 : x
  2. Step 2: Convert to fraction form
    20,109.52/30,170.76 = 14,261.32/x
  3. Step 3: Cross multiply
    20,109.52x = 30,170.76 × 14,261.32
  4. Step 4: Simplify right side
    20,109.52x = 430,274,863.00
  5. Step 5: Solve for x
    x = 430,274,863.00/20,109.52
  6. Step 6: Final answer
    x = 21,396.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.