Home / 39,899.33-59,828.49-11,815.86

Finding the Fourth Proportional to 39,899.33, 59,828.49 and 11,815.86

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Solution

The fourth proportional to 39,899.33, 59,828.49 and 11,815.86 is: 17,717.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,899.33 : 59,828.49 = 11,815.86 : x
  2. Step 2: Convert to fraction form
    39,899.33/59,828.49 = 11,815.86/x
  3. Step 3: Cross multiply
    39,899.33x = 59,828.49 × 11,815.86
  4. Step 4: Simplify right side
    39,899.33x = 706,925,061.85
  5. Step 5: Solve for x
    x = 706,925,061.85/39,899.33
  6. Step 6: Final answer
    x = 17,717.72

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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.