Home / 39,121.74-58,661.37-13,808.58

Finding the Fourth Proportional to 39,121.74, 58,661.37 and 13,808.58

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Solution

The fourth proportional to 39,121.74, 58,661.37 and 13,808.58 is: 20,705.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,121.74 : 58,661.37 = 13,808.58 : x
  2. Step 2: Convert to fraction form
    39,121.74/58,661.37 = 13,808.58/x
  3. Step 3: Cross multiply
    39,121.74x = 58,661.37 × 13,808.58
  4. Step 4: Simplify right side
    39,121.74x = 810,030,220.55
  5. Step 5: Solve for x
    x = 810,030,220.55/39,121.74
  6. Step 6: Final answer
    x = 20,705.37

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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.