Home / 43,028.35-64,520.25-19,315.47

Finding the Fourth Proportional to 43,028.35, 64,520.25 and 19,315.47

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Solution

The fourth proportional to 43,028.35, 64,520.25 and 19,315.47 is: 28,963.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,028.35 : 64,520.25 = 19,315.47 : x
  2. Step 2: Convert to fraction form
    43,028.35/64,520.25 = 19,315.47/x
  3. Step 3: Cross multiply
    43,028.35x = 64,520.25 × 19,315.47
  4. Step 4: Simplify right side
    43,028.35x = 1,246,238,953.27
  5. Step 5: Solve for x
    x = 1,246,238,953.27/43,028.35
  6. Step 6: Final answer
    x = 28,963.21

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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.