Home / 39,046.20-53,883.11-21,141.06

Finding the Fourth Proportional to 39,046.20, 53,883.11 and 21,141.06

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Solution

The fourth proportional to 39,046.20, 53,883.11 and 21,141.06 is: 29,174.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,046.20 : 53,883.11 = 21,141.06 : x
  2. Step 2: Convert to fraction form
    39,046.20/53,883.11 = 21,141.06/x
  3. Step 3: Cross multiply
    39,046.20x = 53,883.11 × 21,141.06
  4. Step 4: Simplify right side
    39,046.20x = 1,139,145,955.79
  5. Step 5: Solve for x
    x = 1,139,145,955.79/39,046.20
  6. Step 6: Final answer
    x = 29,174.31

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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.