Home / 42,375.60-63,563.81-12,793.68

Finding the Fourth Proportional to 42,375.60, 63,563.81 and 12,793.68

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Solution

The fourth proportional to 42,375.60, 63,563.81 and 12,793.68 is: 19,190.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,375.60 : 63,563.81 = 12,793.68 : x
  2. Step 2: Convert to fraction form
    42,375.60/63,563.81 = 12,793.68/x
  3. Step 3: Cross multiply
    42,375.60x = 63,563.81 × 12,793.68
  4. Step 4: Simplify right side
    42,375.60x = 813,214,980.75
  5. Step 5: Solve for x
    x = 813,214,980.75/42,375.60
  6. Step 6: Final answer
    x = 19,190.64

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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.