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Finding the Fourth Proportional to 30,251.34, 45,377.10 and 10,525.20

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Solution

The fourth proportional to 30,251.34, 45,377.10 and 10,525.20 is: 15,787.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,251.34 : 45,377.10 = 10,525.20 : x
  2. Step 2: Convert to fraction form
    30,251.34/45,377.10 = 10,525.20/x
  3. Step 3: Cross multiply
    30,251.34x = 45,377.10 × 10,525.20
  4. Step 4: Simplify right side
    30,251.34x = 477,603,052.92
  5. Step 5: Solve for x
    x = 477,603,052.92/30,251.34
  6. Step 6: Final answer
    x = 15,787.83

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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.