Home / 20,520.30-30,782.25-15,041.82

Finding the Fourth Proportional to 20,520.30, 30,782.25 and 15,041.82

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Solution

The fourth proportional to 20,520.30, 30,782.25 and 15,041.82 is: 22,564.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,520.30 : 30,782.25 = 15,041.82 : x
  2. Step 2: Convert to fraction form
    20,520.30/30,782.25 = 15,041.82/x
  3. Step 3: Cross multiply
    20,520.30x = 30,782.25 × 15,041.82
  4. Step 4: Simplify right side
    20,520.30x = 463,021,063.70
  5. Step 5: Solve for x
    x = 463,021,063.70/20,520.30
  6. Step 6: Final answer
    x = 22,564.05

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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.