Home / 39,884.60-59,815.38-13,588.76

Finding the Fourth Proportional to 39,884.60, 59,815.38 and 13,588.76

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Solution

The fourth proportional to 39,884.60, 59,815.38 and 13,588.76 is: 20,379.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,884.60 : 59,815.38 = 13,588.76 : x
  2. Step 2: Convert to fraction form
    39,884.60/59,815.38 = 13,588.76/x
  3. Step 3: Cross multiply
    39,884.60x = 59,815.38 × 13,588.76
  4. Step 4: Simplify right side
    39,884.60x = 812,816,843.13
  5. Step 5: Solve for x
    x = 812,816,843.13/39,884.60
  6. Step 6: Final answer
    x = 20,379.22

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1.5x scale

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.