Home / 45,288.39-67,941.12-20,327.82

Finding the Fourth Proportional to 45,288.39, 67,941.12 and 20,327.82

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Solution

The fourth proportional to 45,288.39, 67,941.12 and 20,327.82 is: 30,495.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,288.39 : 67,941.12 = 20,327.82 : x
  2. Step 2: Convert to fraction form
    45,288.39/67,941.12 = 20,327.82/x
  3. Step 3: Cross multiply
    45,288.39x = 67,941.12 × 20,327.82
  4. Step 4: Simplify right side
    45,288.39x = 1,381,094,857.96
  5. Step 5: Solve for x
    x = 1,381,094,857.96/45,288.39
  6. Step 6: Final answer
    x = 30,495.56

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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.