Home / 39,278.18-58,911.42-12,983.06

Finding the Fourth Proportional to 39,278.18, 58,911.42 and 12,983.06

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Solution

The fourth proportional to 39,278.18, 58,911.42 and 12,983.06 is: 19,472.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,278.18 : 58,911.42 = 12,983.06 : x
  2. Step 2: Convert to fraction form
    39,278.18/58,911.42 = 12,983.06/x
  3. Step 3: Cross multiply
    39,278.18x = 58,911.42 × 12,983.06
  4. Step 4: Simplify right side
    39,278.18x = 764,850,500.55
  5. Step 5: Solve for x
    x = 764,850,500.55/39,278.18
  6. Step 6: Final answer
    x = 19,472.66

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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.