Home / 39,619.36-59,419.50-11,531.80

Finding the Fourth Proportional to 39,619.36, 59,419.50 and 11,531.80

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Solution

The fourth proportional to 39,619.36, 59,419.50 and 11,531.80 is: 17,294.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,619.36 : 59,419.50 = 11,531.80 : x
  2. Step 2: Convert to fraction form
    39,619.36/59,419.50 = 11,531.80/x
  3. Step 3: Cross multiply
    39,619.36x = 59,419.50 × 11,531.80
  4. Step 4: Simplify right side
    39,619.36x = 685,213,790.10
  5. Step 5: Solve for x
    x = 685,213,790.10/39,619.36
  6. Step 6: Final answer
    x = 17,294.92

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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.