Home / 39,519.36-54,536.60-21,369.95

Finding the Fourth Proportional to 39,519.36, 54,536.60 and 21,369.95

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Solution

The fourth proportional to 39,519.36, 54,536.60 and 21,369.95 is: 29,490.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,519.36 : 54,536.60 = 21,369.95 : x
  2. Step 2: Convert to fraction form
    39,519.36/54,536.60 = 21,369.95/x
  3. Step 3: Cross multiply
    39,519.36x = 54,536.60 × 21,369.95
  4. Step 4: Simplify right side
    39,519.36x = 1,165,444,035.64
  5. Step 5: Solve for x
    x = 1,165,444,035.64/39,519.36
  6. Step 6: Final answer
    x = 29,490.46

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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.