Home / 39,583.77-54,625.68-21,434.69

Finding the Fourth Proportional to 39,583.77, 54,625.68 and 21,434.69

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Solution

The fourth proportional to 39,583.77, 54,625.68 and 21,434.69 is: 29,579.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,583.77 : 54,625.68 = 21,434.69 : x
  2. Step 2: Convert to fraction form
    39,583.77/54,625.68 = 21,434.69/x
  3. Step 3: Cross multiply
    39,583.77x = 54,625.68 × 21,434.69
  4. Step 4: Simplify right side
    39,583.77x = 1,170,884,243.71
  5. Step 5: Solve for x
    x = 1,170,884,243.71/39,583.77
  6. Step 6: Final answer
    x = 29,579.91

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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.