Home / 39,222.41-54,127.34-21,317.42

Finding the Fourth Proportional to 39,222.41, 54,127.34 and 21,317.42

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Solution

The fourth proportional to 39,222.41, 54,127.34 and 21,317.42 is: 29,418.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,222.41 : 54,127.34 = 21,317.42 : x
  2. Step 2: Convert to fraction form
    39,222.41/54,127.34 = 21,317.42/x
  3. Step 3: Cross multiply
    39,222.41x = 54,127.34 × 21,317.42
  4. Step 4: Simplify right side
    39,222.41x = 1,153,855,240.26
  5. Step 5: Solve for x
    x = 1,153,855,240.26/39,222.41
  6. Step 6: Final answer
    x = 29,418.26

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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.