Home / 20,518.92-30,772.90-5,725.24

Finding the Fourth Proportional to 20,518.92, 30,772.90 and 5,725.24

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Solution

The fourth proportional to 20,518.92, 30,772.90 and 5,725.24 is: 8,586.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,518.92 : 30,772.90 = 5,725.24 : x
  2. Step 2: Convert to fraction form
    20,518.92/30,772.90 = 5,725.24/x
  3. Step 3: Cross multiply
    20,518.92x = 30,772.90 × 5,725.24
  4. Step 4: Simplify right side
    20,518.92x = 176,182,238.00
  5. Step 5: Solve for x
    x = 176,182,238.00/20,518.92
  6. Step 6: Final answer
    x = 8,586.33

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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.