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Finding the Fourth Proportional to 30,245.90, 45,369.17 and 10,525.10

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Solution

The fourth proportional to 30,245.90, 45,369.17 and 10,525.10 is: 15,787.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,245.90 : 45,369.17 = 10,525.10 : x
  2. Step 2: Convert to fraction form
    30,245.90/45,369.17 = 10,525.10/x
  3. Step 3: Cross multiply
    30,245.90x = 45,369.17 × 10,525.10
  4. Step 4: Simplify right side
    30,245.90x = 477,514,998.54
  5. Step 5: Solve for x
    x = 477,514,998.54/30,245.90
  6. Step 6: Final answer
    x = 15,787.76

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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.