Home / 39,388.93-54,356.69-21,483.88

Finding the Fourth Proportional to 39,388.93, 54,356.69 and 21,483.88

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Solution

The fourth proportional to 39,388.93, 54,356.69 and 21,483.88 is: 29,647.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,388.93 : 54,356.69 = 21,483.88 : x
  2. Step 2: Convert to fraction form
    39,388.93/54,356.69 = 21,483.88/x
  3. Step 3: Cross multiply
    39,388.93x = 54,356.69 × 21,483.88
  4. Step 4: Simplify right side
    39,388.93x = 1,167,792,225.95
  5. Step 5: Solve for x
    x = 1,167,792,225.95/39,388.93
  6. Step 6: Final answer
    x = 29,647.73

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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.