Home / 42,378.60-63,568.38-12,796.68

Finding the Fourth Proportional to 42,378.60, 63,568.38 and 12,796.68

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Solution

The fourth proportional to 42,378.60, 63,568.38 and 12,796.68 is: 19,195.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,378.60 : 63,568.38 = 12,796.68 : x
  2. Step 2: Convert to fraction form
    42,378.60/63,568.38 = 12,796.68/x
  3. Step 3: Cross multiply
    42,378.60x = 63,568.38 × 12,796.68
  4. Step 4: Simplify right side
    42,378.60x = 813,464,216.98
  5. Step 5: Solve for x
    x = 813,464,216.98/42,378.60
  6. Step 6: Final answer
    x = 19,195.16

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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.