Home / 20,113.70-30,170.55-14,555.30

Finding the Fourth Proportional to 20,113.70, 30,170.55 and 14,555.30

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Solution

The fourth proportional to 20,113.70, 30,170.55 and 14,555.30 is: 21,832.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.70 : 30,170.55 = 14,555.30 : x
  2. Step 2: Convert to fraction form
    20,113.70/30,170.55 = 14,555.30/x
  3. Step 3: Cross multiply
    20,113.70x = 30,170.55 × 14,555.30
  4. Step 4: Simplify right side
    20,113.70x = 439,141,406.42
  5. Step 5: Solve for x
    x = 439,141,406.42/20,113.70
  6. Step 6: Final answer
    x = 21,832.95

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Half scale
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Double scale
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Similar ratio
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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.