Home / 39,041.58-53,876.73-21,136.42

Finding the Fourth Proportional to 39,041.58, 53,876.73 and 21,136.42

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Solution

The fourth proportional to 39,041.58, 53,876.73 and 21,136.42 is: 29,167.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,041.58 : 53,876.73 = 21,136.42 : x
  2. Step 2: Convert to fraction form
    39,041.58/53,876.73 = 21,136.42/x
  3. Step 3: Cross multiply
    39,041.58x = 53,876.73 × 21,136.42
  4. Step 4: Simplify right side
    39,041.58x = 1,138,761,193.51
  5. Step 5: Solve for x
    x = 1,138,761,193.51/39,041.58
  6. Step 6: Final answer
    x = 29,167.91

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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.