Home / 42,542.09-63,822.36-12,959.15

Finding the Fourth Proportional to 42,542.09, 63,822.36 and 12,959.15

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Solution

The fourth proportional to 42,542.09, 63,822.36 and 12,959.15 is: 19,441.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,542.09 : 63,822.36 = 12,959.15 : x
  2. Step 2: Convert to fraction form
    42,542.09/63,822.36 = 12,959.15/x
  3. Step 3: Cross multiply
    42,542.09x = 63,822.36 × 12,959.15
  4. Step 4: Simplify right side
    42,542.09x = 827,083,536.59
  5. Step 5: Solve for x
    x = 827,083,536.59/42,542.09
  6. Step 6: Final answer
    x = 19,441.54

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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.