Home / 39,540.60-59,291.70-21,991.80

Finding the Fourth Proportional to 39,540.60, 59,291.70 and 21,991.80

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Solution

The fourth proportional to 39,540.60, 59,291.70 and 21,991.80 is: 32,977.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,540.60 : 59,291.70 = 21,991.80 : x
  2. Step 2: Convert to fraction form
    39,540.60/59,291.70 = 21,991.80/x
  3. Step 3: Cross multiply
    39,540.60x = 59,291.70 × 21,991.80
  4. Step 4: Simplify right side
    39,540.60x = 1,303,931,208.06
  5. Step 5: Solve for x
    x = 1,303,931,208.06/39,540.60
  6. Step 6: Final answer
    x = 32,977.02

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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.