Home / 43,228.78-64,851-21,042.14

Finding the Fourth Proportional to 43,228.78, 64,851 and 21,042.14

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Solution

The fourth proportional to 43,228.78, 64,851 and 21,042.14 is: 31,567.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,228.78 : 64,851 = 21,042.14 : x
  2. Step 2: Convert to fraction form
    43,228.78/64,851 = 21,042.14/x
  3. Step 3: Cross multiply
    43,228.78x = 64,851 × 21,042.14
  4. Step 4: Simplify right side
    43,228.78x = 1,364,603,821.14
  5. Step 5: Solve for x
    x = 1,364,603,821.14/43,228.78
  6. Step 6: Final answer
    x = 31,567.02

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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.