Home / 20,219.60-30,333.48-8,532.80

Finding the Fourth Proportional to 20,219.60, 30,333.48 and 8,532.80

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Solution

The fourth proportional to 20,219.60, 30,333.48 and 8,532.80 is: 12,800.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219.60 : 30,333.48 = 8,532.80 : x
  2. Step 2: Convert to fraction form
    20,219.60/30,333.48 = 8,532.80/x
  3. Step 3: Cross multiply
    20,219.60x = 30,333.48 × 8,532.80
  4. Step 4: Simplify right side
    20,219.60x = 258,829,518.14
  5. Step 5: Solve for x
    x = 258,829,518.14/20,219.60
  6. Step 6: Final answer
    x = 12,800.92

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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.