Home / 30,537.02-42,142.82-17,112.60

Finding the Fourth Proportional to 30,537.02, 42,142.82 and 17,112.60

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Solution

The fourth proportional to 30,537.02, 42,142.82 and 17,112.60 is: 23,616.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,537.02 : 42,142.82 = 17,112.60 : x
  2. Step 2: Convert to fraction form
    30,537.02/42,142.82 = 17,112.60/x
  3. Step 3: Cross multiply
    30,537.02x = 42,142.82 × 17,112.60
  4. Step 4: Simplify right side
    30,537.02x = 721,173,135.97
  5. Step 5: Solve for x
    x = 721,173,135.97/30,537.02
  6. Step 6: Final answer
    x = 23,616.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.