Home / 38,231.28-52,758.48-21,235.60

Finding the Fourth Proportional to 38,231.28, 52,758.48 and 21,235.60

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Solution

The fourth proportional to 38,231.28, 52,758.48 and 21,235.60 is: 29,304.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,231.28 : 52,758.48 = 21,235.60 : x
  2. Step 2: Convert to fraction form
    38,231.28/52,758.48 = 21,235.60/x
  3. Step 3: Cross multiply
    38,231.28x = 52,758.48 × 21,235.60
  4. Step 4: Simplify right side
    38,231.28x = 1,120,357,977.89
  5. Step 5: Solve for x
    x = 1,120,357,977.89/38,231.28
  6. Step 6: Final answer
    x = 29,304.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.