Home / 31,116.48-42,941.28-16,969.44

Finding the Fourth Proportional to 31,116.48, 42,941.28 and 16,969.44

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Solution

The fourth proportional to 31,116.48, 42,941.28 and 16,969.44 is: 23,418.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,116.48 : 42,941.28 = 16,969.44 : x
  2. Step 2: Convert to fraction form
    31,116.48/42,941.28 = 16,969.44/x
  3. Step 3: Cross multiply
    31,116.48x = 42,941.28 × 16,969.44
  4. Step 4: Simplify right side
    31,116.48x = 728,689,474.48
  5. Step 5: Solve for x
    x = 728,689,474.48/31,116.48
  6. Step 6: Final answer
    x = 23,418.12

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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.