Home / 20,496.42-30,705.74-12,158.82

Finding the Fourth Proportional to 20,496.42, 30,705.74 and 12,158.82

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Solution

The fourth proportional to 20,496.42, 30,705.74 and 12,158.82 is: 18,215.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,496.42 : 30,705.74 = 12,158.82 : x
  2. Step 2: Convert to fraction form
    20,496.42/30,705.74 = 12,158.82/x
  3. Step 3: Cross multiply
    20,496.42x = 30,705.74 × 12,158.82
  4. Step 4: Simplify right side
    20,496.42x = 373,345,565.63
  5. Step 5: Solve for x
    x = 373,345,565.63/20,496.42
  6. Step 6: Final answer
    x = 18,215.16

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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.