Home / 39,412.12-59,105.20-13,109.80

Finding the Fourth Proportional to 39,412.12, 59,105.20 and 13,109.80

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Solution

The fourth proportional to 39,412.12, 59,105.20 and 13,109.80 is: 19,660.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,412.12 : 59,105.20 = 13,109.80 : x
  2. Step 2: Convert to fraction form
    39,412.12/59,105.20 = 13,109.80/x
  3. Step 3: Cross multiply
    39,412.12x = 59,105.20 × 13,109.80
  4. Step 4: Simplify right side
    39,412.12x = 774,857,350.96
  5. Step 5: Solve for x
    x = 774,857,350.96/39,412.12
  6. Step 6: Final answer
    x = 19,660.38

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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.