Home / 42,378.35-63,577.81-12,794.42

Finding the Fourth Proportional to 42,378.35, 63,577.81 and 12,794.42

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Solution

The fourth proportional to 42,378.35, 63,577.81 and 12,794.42 is: 19,194.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,378.35 : 63,577.81 = 12,794.42 : x
  2. Step 2: Convert to fraction form
    42,378.35/63,577.81 = 12,794.42/x
  3. Step 3: Cross multiply
    42,378.35x = 63,577.81 × 12,794.42
  4. Step 4: Simplify right side
    42,378.35x = 813,441,203.82
  5. Step 5: Solve for x
    x = 813,441,203.82/42,378.35
  6. Step 6: Final answer
    x = 19,194.74

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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.