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Finding the Fourth Proportional to 30,374.85, 45,793.56 and 28,234.32

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Solution

The fourth proportional to 30,374.85, 45,793.56 and 28,234.32 is: 42,566.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,374.85 : 45,793.56 = 28,234.32 : x
  2. Step 2: Convert to fraction form
    30,374.85/45,793.56 = 28,234.32/x
  3. Step 3: Cross multiply
    30,374.85x = 45,793.56 × 28,234.32
  4. Step 4: Simplify right side
    30,374.85x = 1,292,950,026.98
  5. Step 5: Solve for x
    x = 1,292,950,026.98/30,374.85
  6. Step 6: Final answer
    x = 42,566.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.