Home / 39,178.24-58,772.16-12,887.68

Finding the Fourth Proportional to 39,178.24, 58,772.16 and 12,887.68

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Solution

The fourth proportional to 39,178.24, 58,772.16 and 12,887.68 is: 19,333.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,178.24 : 58,772.16 = 12,887.68 : x
  2. Step 2: Convert to fraction form
    39,178.24/58,772.16 = 12,887.68/x
  3. Step 3: Cross multiply
    39,178.24x = 58,772.16 × 12,887.68
  4. Step 4: Simplify right side
    39,178.24x = 757,436,790.99
  5. Step 5: Solve for x
    x = 757,436,790.99/39,178.24
  6. Step 6: Final answer
    x = 19,333.10

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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.