Home / 30,436.21-45,612.62-17,115.67

Finding the Fourth Proportional to 30,436.21, 45,612.62 and 17,115.67

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Solution

The fourth proportional to 30,436.21, 45,612.62 and 17,115.67 is: 25,650.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,436.21 : 45,612.62 = 17,115.67 : x
  2. Step 2: Convert to fraction form
    30,436.21/45,612.62 = 17,115.67/x
  3. Step 3: Cross multiply
    30,436.21x = 45,612.62 × 17,115.67
  4. Step 4: Simplify right side
    30,436.21x = 780,690,394.95
  5. Step 5: Solve for x
    x = 780,690,394.95/30,436.21
  6. Step 6: Final answer
    x = 25,650.06

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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.