Home / 39,092.79-53,947.83-21,187.60

Finding the Fourth Proportional to 39,092.79, 53,947.83 and 21,187.60

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Solution

The fourth proportional to 39,092.79, 53,947.83 and 21,187.60 is: 29,238.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,092.79 : 53,947.83 = 21,187.60 : x
  2. Step 2: Convert to fraction form
    39,092.79/53,947.83 = 21,187.60/x
  3. Step 3: Cross multiply
    39,092.79x = 53,947.83 × 21,187.60
  4. Step 4: Simplify right side
    39,092.79x = 1,143,025,042.91
  5. Step 5: Solve for x
    x = 1,143,025,042.91/39,092.79
  6. Step 6: Final answer
    x = 29,238.77

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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.