Home / 19,021.20-28,539.08-8,630.52

Finding the Fourth Proportional to 19,021.20, 28,539.08 and 8,630.52

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Solution

The fourth proportional to 19,021.20, 28,539.08 and 8,630.52 is: 12,949.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,021.20 : 28,539.08 = 8,630.52 : x
  2. Step 2: Convert to fraction form
    19,021.20/28,539.08 = 8,630.52/x
  3. Step 3: Cross multiply
    19,021.20x = 28,539.08 × 8,630.52
  4. Step 4: Simplify right side
    19,021.20x = 246,307,100.72
  5. Step 5: Solve for x
    x = 246,307,100.72/19,021.20
  6. Step 6: Final answer
    x = 12,949.08

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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.