Home / 42,893.28-64,305.36-18,286.56

Finding the Fourth Proportional to 42,893.28, 64,305.36 and 18,286.56

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Solution

The fourth proportional to 42,893.28, 64,305.36 and 18,286.56 is: 27,415.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,893.28 : 64,305.36 = 18,286.56 : x
  2. Step 2: Convert to fraction form
    42,893.28/64,305.36 = 18,286.56/x
  3. Step 3: Cross multiply
    42,893.28x = 64,305.36 × 18,286.56
  4. Step 4: Simplify right side
    42,893.28x = 1,175,923,823.96
  5. Step 5: Solve for x
    x = 1,175,923,823.96/42,893.28
  6. Step 6: Final answer
    x = 27,415.11

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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.