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Finding the Fourth Proportional to 30,151.98, 41,800.31 and 28,552.29

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Solution

The fourth proportional to 30,151.98, 41,800.31 and 28,552.29 is: 39,582.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,151.98 : 41,800.31 = 28,552.29 : x
  2. Step 2: Convert to fraction form
    30,151.98/41,800.31 = 28,552.29/x
  3. Step 3: Cross multiply
    30,151.98x = 41,800.31 × 28,552.29
  4. Step 4: Simplify right side
    30,151.98x = 1,193,494,776.50
  5. Step 5: Solve for x
    x = 1,193,494,776.50/30,151.98
  6. Step 6: Final answer
    x = 39,582.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.