Home / 39,583.74-54,625.56-21,678.72

Finding the Fourth Proportional to 39,583.74, 54,625.56 and 21,678.72

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Solution

The fourth proportional to 39,583.74, 54,625.56 and 21,678.72 is: 29,916.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,583.74 : 54,625.56 = 21,678.72 : x
  2. Step 2: Convert to fraction form
    39,583.74/54,625.56 = 21,678.72/x
  3. Step 3: Cross multiply
    39,583.74x = 54,625.56 × 21,678.72
  4. Step 4: Simplify right side
    39,583.74x = 1,184,212,220.08
  5. Step 5: Solve for x
    x = 1,184,212,220.08/39,583.74
  6. Step 6: Final answer
    x = 29,916.63

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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.