Home / 19,220.68-28,832.24-8,125.30

Finding the Fourth Proportional to 19,220.68, 28,832.24 and 8,125.30

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Solution

The fourth proportional to 19,220.68, 28,832.24 and 8,125.30 is: 12,188.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,220.68 : 28,832.24 = 8,125.30 : x
  2. Step 2: Convert to fraction form
    19,220.68/28,832.24 = 8,125.30/x
  3. Step 3: Cross multiply
    19,220.68x = 28,832.24 × 8,125.30
  4. Step 4: Simplify right side
    19,220.68x = 234,270,599.67
  5. Step 5: Solve for x
    x = 234,270,599.67/19,220.68
  6. Step 6: Final answer
    x = 12,188.47

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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.