Home / 39,046.18-53,883.65-21,141.20

Finding the Fourth Proportional to 39,046.18, 53,883.65 and 21,141.20

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Solution

The fourth proportional to 39,046.18, 53,883.65 and 21,141.20 is: 29,174.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,046.18 : 53,883.65 = 21,141.20 : x
  2. Step 2: Convert to fraction form
    39,046.18/53,883.65 = 21,141.20/x
  3. Step 3: Cross multiply
    39,046.18x = 53,883.65 × 21,141.20
  4. Step 4: Simplify right side
    39,046.18x = 1,139,165,021.38
  5. Step 5: Solve for x
    x = 1,139,165,021.38/39,046.18
  6. Step 6: Final answer
    x = 29,174.81

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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.