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Finding the Fourth Proportional to 30,374.70, 45,577.42 and 20,493.22

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Solution

The fourth proportional to 30,374.70, 45,577.42 and 20,493.22 is: 30,750.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,374.70 : 45,577.42 = 20,493.22 : x
  2. Step 2: Convert to fraction form
    30,374.70/45,577.42 = 20,493.22/x
  3. Step 3: Cross multiply
    30,374.70x = 45,577.42 × 20,493.22
  4. Step 4: Simplify right side
    30,374.70x = 934,028,095.09
  5. Step 5: Solve for x
    x = 934,028,095.09/30,374.70
  6. Step 6: Final answer
    x = 30,750.20

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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.