Home / 39,187.12-58,785.72-12,894.52

Finding the Fourth Proportional to 39,187.12, 58,785.72 and 12,894.52

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Solution

The fourth proportional to 39,187.12, 58,785.72 and 12,894.52 is: 19,343.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,187.12 : 58,785.72 = 12,894.52 : x
  2. Step 2: Convert to fraction form
    39,187.12/58,785.72 = 12,894.52/x
  3. Step 3: Cross multiply
    39,187.12x = 58,785.72 × 12,894.52
  4. Step 4: Simplify right side
    39,187.12x = 758,013,642.25
  5. Step 5: Solve for x
    x = 758,013,642.25/39,187.12
  6. Step 6: Final answer
    x = 19,343.44

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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.