Home / 39,886.40-59,829.60-13,584.80

Finding the Fourth Proportional to 39,886.40, 59,829.60 and 13,584.80

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Solution

The fourth proportional to 39,886.40, 59,829.60 and 13,584.80 is: 20,377.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,886.40 : 59,829.60 = 13,584.80 : x
  2. Step 2: Convert to fraction form
    39,886.40/59,829.60 = 13,584.80/x
  3. Step 3: Cross multiply
    39,886.40x = 59,829.60 × 13,584.80
  4. Step 4: Simplify right side
    39,886.40x = 812,773,150.08
  5. Step 5: Solve for x
    x = 812,773,150.08/39,886.40
  6. Step 6: Final answer
    x = 20,377.20

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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.