Home / 39,408.09-59,121.05-13,113.87

Finding the Fourth Proportional to 39,408.09, 59,121.05 and 13,113.87

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Solution

The fourth proportional to 39,408.09, 59,121.05 and 13,113.87 is: 19,673.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,408.09 : 59,121.05 = 13,113.87 : x
  2. Step 2: Convert to fraction form
    39,408.09/59,121.05 = 13,113.87/x
  3. Step 3: Cross multiply
    39,408.09x = 59,121.05 × 13,113.87
  4. Step 4: Simplify right side
    39,408.09x = 775,305,763.96
  5. Step 5: Solve for x
    x = 775,305,763.96/39,408.09
  6. Step 6: Final answer
    x = 19,673.77

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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.