Home / 39,046.36-53,883.48-21,140.96

Finding the Fourth Proportional to 39,046.36, 53,883.48 and 21,140.96

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Solution

The fourth proportional to 39,046.36, 53,883.48 and 21,140.96 is: 29,174.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,046.36 : 53,883.48 = 21,140.96 : x
  2. Step 2: Convert to fraction form
    39,046.36/53,883.48 = 21,140.96/x
  3. Step 3: Cross multiply
    39,046.36x = 53,883.48 × 21,140.96
  4. Step 4: Simplify right side
    39,046.36x = 1,139,148,495.34
  5. Step 5: Solve for x
    x = 1,139,148,495.34/39,046.36
  6. Step 6: Final answer
    x = 29,174.26

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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.