Home / 42,143.31-63,197.40-17,166.36

Finding the Fourth Proportional to 42,143.31, 63,197.40 and 17,166.36

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Solution

The fourth proportional to 42,143.31, 63,197.40 and 17,166.36 is: 25,742.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,143.31 : 63,197.40 = 17,166.36 : x
  2. Step 2: Convert to fraction form
    42,143.31/63,197.40 = 17,166.36/x
  3. Step 3: Cross multiply
    42,143.31x = 63,197.40 × 17,166.36
  4. Step 4: Simplify right side
    42,143.31x = 1,084,869,319.46
  5. Step 5: Solve for x
    x = 1,084,869,319.46/42,143.31
  6. Step 6: Final answer
    x = 25,742.39

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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.