Home / 20,459.08-30,687.66-6,416.92

Finding the Fourth Proportional to 20,459.08, 30,687.66 and 6,416.92

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Solution

The fourth proportional to 20,459.08, 30,687.66 and 6,416.92 is: 9,625.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,459.08 : 30,687.66 = 6,416.92 : x
  2. Step 2: Convert to fraction form
    20,459.08/30,687.66 = 6,416.92/x
  3. Step 3: Cross multiply
    20,459.08x = 30,687.66 × 6,416.92
  4. Step 4: Simplify right side
    20,459.08x = 196,920,297.57
  5. Step 5: Solve for x
    x = 196,920,297.57/20,459.08
  6. Step 6: Final answer
    x = 9,625.08

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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.