Home / 20,220.08-30,333.35-8,535.02

Finding the Fourth Proportional to 20,220.08, 30,333.35 and 8,535.02

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Solution

The fourth proportional to 20,220.08, 30,333.35 and 8,535.02 is: 12,803.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220.08 : 30,333.35 = 8,535.02 : x
  2. Step 2: Convert to fraction form
    20,220.08/30,333.35 = 8,535.02/x
  3. Step 3: Cross multiply
    20,220.08x = 30,333.35 × 8,535.02
  4. Step 4: Simplify right side
    20,220.08x = 258,895,748.92
  5. Step 5: Solve for x
    x = 258,895,748.92/20,220.08
  6. Step 6: Final answer
    x = 12,803.89

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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.