Home / 38,675.26-53,371.79-21,679.51

Finding the Fourth Proportional to 38,675.26, 53,371.79 and 21,679.51

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Solution

The fourth proportional to 38,675.26, 53,371.79 and 21,679.51 is: 29,917.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,675.26 : 53,371.79 = 21,679.51 : x
  2. Step 2: Convert to fraction form
    38,675.26/53,371.79 = 21,679.51/x
  3. Step 3: Cross multiply
    38,675.26x = 53,371.79 × 21,679.51
  4. Step 4: Simplify right side
    38,675.26x = 1,157,074,455.34
  5. Step 5: Solve for x
    x = 1,157,074,455.34/38,675.26
  6. Step 6: Final answer
    x = 29,917.69

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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.