Home / 39,256.71-54,172.69-21,351.73

Finding the Fourth Proportional to 39,256.71, 54,172.69 and 21,351.73

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Solution

The fourth proportional to 39,256.71, 54,172.69 and 21,351.73 is: 29,464.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,256.71 : 54,172.69 = 21,351.73 : x
  2. Step 2: Convert to fraction form
    39,256.71/54,172.69 = 21,351.73/x
  3. Step 3: Cross multiply
    39,256.71x = 54,172.69 × 21,351.73
  4. Step 4: Simplify right side
    39,256.71x = 1,156,680,650.25
  5. Step 5: Solve for x
    x = 1,156,680,650.25/39,256.71
  6. Step 6: Final answer
    x = 29,464.53

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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.