Home / 43,214.51-64,821.78-13,634.66

Finding the Fourth Proportional to 43,214.51, 64,821.78 and 13,634.66

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Solution

The fourth proportional to 43,214.51, 64,821.78 and 13,634.66 is: 20,451.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,214.51 : 64,821.78 = 13,634.66 : x
  2. Step 2: Convert to fraction form
    43,214.51/64,821.78 = 13,634.66/x
  3. Step 3: Cross multiply
    43,214.51x = 64,821.78 × 13,634.66
  4. Step 4: Simplify right side
    43,214.51x = 883,822,930.89
  5. Step 5: Solve for x
    x = 883,822,930.89/43,214.51
  6. Step 6: Final answer
    x = 20,451.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.