Home / 39,026.53-53,856.71-21,121.73

Finding the Fourth Proportional to 39,026.53, 53,856.71 and 21,121.73

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Solution

The fourth proportional to 39,026.53, 53,856.71 and 21,121.73 is: 29,148.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,026.53 : 53,856.71 = 21,121.73 : x
  2. Step 2: Convert to fraction form
    39,026.53/53,856.71 = 21,121.73/x
  3. Step 3: Cross multiply
    39,026.53x = 53,856.71 × 21,121.73
  4. Step 4: Simplify right side
    39,026.53x = 1,137,546,887.31
  5. Step 5: Solve for x
    x = 1,137,546,887.31/39,026.53
  6. Step 6: Final answer
    x = 29,148.04

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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.