Home / 39,420.96-59,134.35-11,339.88

Finding the Fourth Proportional to 39,420.96, 59,134.35 and 11,339.88

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Solution

The fourth proportional to 39,420.96, 59,134.35 and 11,339.88 is: 17,010.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,420.96 : 59,134.35 = 11,339.88 : x
  2. Step 2: Convert to fraction form
    39,420.96/59,134.35 = 11,339.88/x
  3. Step 3: Cross multiply
    39,420.96x = 59,134.35 × 11,339.88
  4. Step 4: Simplify right side
    39,420.96x = 670,576,432.88
  5. Step 5: Solve for x
    x = 670,576,432.88/39,420.96
  6. Step 6: Final answer
    x = 17,010.66

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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.