Home / 39,877.20-59,823.90-13,584.60

Finding the Fourth Proportional to 39,877.20, 59,823.90 and 13,584.60

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Solution

The fourth proportional to 39,877.20, 59,823.90 and 13,584.60 is: 20,379.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,877.20 : 59,823.90 = 13,584.60 : x
  2. Step 2: Convert to fraction form
    39,877.20/59,823.90 = 13,584.60/x
  3. Step 3: Cross multiply
    39,877.20x = 59,823.90 × 13,584.60
  4. Step 4: Simplify right side
    39,877.20x = 812,683,751.94
  5. Step 5: Solve for x
    x = 812,683,751.94/39,877.20
  6. Step 6: Final answer
    x = 20,379.66

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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.