Home / 38,535.20-57,759.60-21,903.20

Finding the Fourth Proportional to 38,535.20, 57,759.60 and 21,903.20

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Solution

The fourth proportional to 38,535.20, 57,759.60 and 21,903.20 is: 32,830.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,535.20 : 57,759.60 = 21,903.20 : x
  2. Step 2: Convert to fraction form
    38,535.20/57,759.60 = 21,903.20/x
  3. Step 3: Cross multiply
    38,535.20x = 57,759.60 × 21,903.20
  4. Step 4: Simplify right side
    38,535.20x = 1,265,120,070.72
  5. Step 5: Solve for x
    x = 1,265,120,070.72/38,535.20
  6. Step 6: Final answer
    x = 32,830.25

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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.