Home / 39,041.02-53,876.63-21,136.03

Finding the Fourth Proportional to 39,041.02, 53,876.63 and 21,136.03

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Solution

The fourth proportional to 39,041.02, 53,876.63 and 21,136.03 is: 29,167.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,041.02 : 53,876.63 = 21,136.03 : x
  2. Step 2: Convert to fraction form
    39,041.02/53,876.63 = 21,136.03/x
  3. Step 3: Cross multiply
    39,041.02x = 53,876.63 × 21,136.03
  4. Step 4: Simplify right side
    39,041.02x = 1,138,738,067.98
  5. Step 5: Solve for x
    x = 1,138,738,067.98/39,041.02
  6. Step 6: Final answer
    x = 29,167.73

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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.