Home / 39,814.72-59,730.70-13,161.84

Finding the Fourth Proportional to 39,814.72, 59,730.70 and 13,161.84

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Solution

The fourth proportional to 39,814.72, 59,730.70 and 13,161.84 is: 19,745.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,814.72 : 59,730.70 = 13,161.84 : x
  2. Step 2: Convert to fraction form
    39,814.72/59,730.70 = 13,161.84/x
  3. Step 3: Cross multiply
    39,814.72x = 59,730.70 × 13,161.84
  4. Step 4: Simplify right side
    39,814.72x = 786,165,916.49
  5. Step 5: Solve for x
    x = 786,165,916.49/39,814.72
  6. Step 6: Final answer
    x = 19,745.61

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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.