Home / 39,420.52-59,129.34-11,717.80

Finding the Fourth Proportional to 39,420.52, 59,129.34 and 11,717.80

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Solution

The fourth proportional to 39,420.52, 59,129.34 and 11,717.80 is: 17,576.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,420.52 : 59,129.34 = 11,717.80 : x
  2. Step 2: Convert to fraction form
    39,420.52/59,129.34 = 11,717.80/x
  3. Step 3: Cross multiply
    39,420.52x = 59,129.34 × 11,717.80
  4. Step 4: Simplify right side
    39,420.52x = 692,865,780.25
  5. Step 5: Solve for x
    x = 692,865,780.25/39,420.52
  6. Step 6: Final answer
    x = 17,576.27

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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.