Home / 43,215.82-64,851.06-16,919.88

Finding the Fourth Proportional to 43,215.82, 64,851.06 and 16,919.88

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Solution

The fourth proportional to 43,215.82, 64,851.06 and 16,919.88 is: 25,390.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,215.82 : 64,851.06 = 16,919.88 : x
  2. Step 2: Convert to fraction form
    43,215.82/64,851.06 = 16,919.88/x
  3. Step 3: Cross multiply
    43,215.82x = 64,851.06 × 16,919.88
  4. Step 4: Simplify right side
    43,215.82x = 1,097,272,153.07
  5. Step 5: Solve for x
    x = 1,097,272,153.07/43,215.82
  6. Step 6: Final answer
    x = 25,390.52

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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.