Home / 39,162.18-58,745.16-12,866.34

Finding the Fourth Proportional to 39,162.18, 58,745.16 and 12,866.34

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Solution

The fourth proportional to 39,162.18, 58,745.16 and 12,866.34 is: 19,300.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,162.18 : 58,745.16 = 12,866.34 : x
  2. Step 2: Convert to fraction form
    39,162.18/58,745.16 = 12,866.34/x
  3. Step 3: Cross multiply
    39,162.18x = 58,745.16 × 12,866.34
  4. Step 4: Simplify right side
    39,162.18x = 755,835,201.91
  5. Step 5: Solve for x
    x = 755,835,201.91/39,162.18
  6. Step 6: Final answer
    x = 19,300.13

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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.