Home / 38,435.20-57,699.60-21,806.80

Finding the Fourth Proportional to 38,435.20, 57,699.60 and 21,806.80

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Solution

The fourth proportional to 38,435.20, 57,699.60 and 21,806.80 is: 32,736.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,435.20 : 57,699.60 = 21,806.80 : x
  2. Step 2: Convert to fraction form
    38,435.20/57,699.60 = 21,806.80/x
  3. Step 3: Cross multiply
    38,435.20x = 57,699.60 × 21,806.80
  4. Step 4: Simplify right side
    38,435.20x = 1,258,243,637.28
  5. Step 5: Solve for x
    x = 1,258,243,637.28/38,435.20
  6. Step 6: Final answer
    x = 32,736.75

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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.