Home / 39,041.51-53,876.64-21,136.37

Finding the Fourth Proportional to 39,041.51, 53,876.64 and 21,136.37

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Solution

The fourth proportional to 39,041.51, 53,876.64 and 21,136.37 is: 29,167.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,041.51 : 53,876.64 = 21,136.37 : x
  2. Step 2: Convert to fraction form
    39,041.51/53,876.64 = 21,136.37/x
  3. Step 3: Cross multiply
    39,041.51x = 53,876.64 × 21,136.37
  4. Step 4: Simplify right side
    39,041.51x = 1,138,756,811.35
  5. Step 5: Solve for x
    x = 1,138,756,811.35/39,041.51
  6. Step 6: Final answer
    x = 29,167.85

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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.