Home / 20,259.40-30,379.98-8,566.60

Finding the Fourth Proportional to 20,259.40, 30,379.98 and 8,566.60

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Solution

The fourth proportional to 20,259.40, 30,379.98 and 8,566.60 is: 12,846.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,259.40 : 30,379.98 = 8,566.60 : x
  2. Step 2: Convert to fraction form
    20,259.40/30,379.98 = 8,566.60/x
  3. Step 3: Cross multiply
    20,259.40x = 30,379.98 × 8,566.60
  4. Step 4: Simplify right side
    20,259.40x = 260,253,136.67
  5. Step 5: Solve for x
    x = 260,253,136.67/20,259.40
  6. Step 6: Final answer
    x = 12,846.04

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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.