Home / 39,026.73-53,857.02-21,121.73

Finding the Fourth Proportional to 39,026.73, 53,857.02 and 21,121.73

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Solution

The fourth proportional to 39,026.73, 53,857.02 and 21,121.73 is: 29,148.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,026.73 : 53,857.02 = 21,121.73 : x
  2. Step 2: Convert to fraction form
    39,026.73/53,857.02 = 21,121.73/x
  3. Step 3: Cross multiply
    39,026.73x = 53,857.02 × 21,121.73
  4. Step 4: Simplify right side
    39,026.73x = 1,137,553,435.04
  5. Step 5: Solve for x
    x = 1,137,553,435.04/39,026.73
  6. Step 6: Final answer
    x = 29,148.06

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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.