Home / 20,265.66-30,377.70-8,426.30

Finding the Fourth Proportional to 20,265.66, 30,377.70 and 8,426.30

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Solution

The fourth proportional to 20,265.66, 30,377.70 and 8,426.30 is: 12,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,265.66 : 30,377.70 = 8,426.30 : x
  2. Step 2: Convert to fraction form
    20,265.66/30,377.70 = 8,426.30/x
  3. Step 3: Cross multiply
    20,265.66x = 30,377.70 × 8,426.30
  4. Step 4: Simplify right side
    20,265.66x = 255,971,461.62
  5. Step 5: Solve for x
    x = 255,971,461.62/20,265.66
  6. Step 6: Final answer
    x = 12,630.80

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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.