Home / 38,936.16-58,404.24-12,643.56

Finding the Fourth Proportional to 38,936.16, 58,404.24 and 12,643.56

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Solution

The fourth proportional to 38,936.16, 58,404.24 and 12,643.56 is: 18,965.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,936.16 : 58,404.24 = 12,643.56 : x
  2. Step 2: Convert to fraction form
    38,936.16/58,404.24 = 12,643.56/x
  3. Step 3: Cross multiply
    38,936.16x = 58,404.24 × 12,643.56
  4. Step 4: Simplify right side
    38,936.16x = 738,437,512.69
  5. Step 5: Solve for x
    x = 738,437,512.69/38,936.16
  6. Step 6: Final answer
    x = 18,965.34

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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.