Home / 20,259.92-30,390.15-8,564.60

Finding the Fourth Proportional to 20,259.92, 30,390.15 and 8,564.60

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Solution

The fourth proportional to 20,259.92, 30,390.15 and 8,564.60 is: 12,847.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,259.92 : 30,390.15 = 8,564.60 : x
  2. Step 2: Convert to fraction form
    20,259.92/30,390.15 = 8,564.60/x
  3. Step 3: Cross multiply
    20,259.92x = 30,390.15 × 8,564.60
  4. Step 4: Simplify right side
    20,259.92x = 260,279,478.69
  5. Step 5: Solve for x
    x = 260,279,478.69/20,259.92
  6. Step 6: Final answer
    x = 12,847.01

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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.