Home / 42,380.55-63,571.32-12,799.67

Finding the Fourth Proportional to 42,380.55, 63,571.32 and 12,799.67

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Solution

The fourth proportional to 42,380.55, 63,571.32 and 12,799.67 is: 19,199.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,380.55 : 63,571.32 = 12,799.67 : x
  2. Step 2: Convert to fraction form
    42,380.55/63,571.32 = 12,799.67/x
  3. Step 3: Cross multiply
    42,380.55x = 63,571.32 × 12,799.67
  4. Step 4: Simplify right side
    42,380.55x = 813,691,599.61
  5. Step 5: Solve for x
    x = 813,691,599.61/42,380.55
  6. Step 6: Final answer
    x = 19,199.65

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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.