Home / 31,012.08-42,796.97-16,865.22

Finding the Fourth Proportional to 31,012.08, 42,796.97 and 16,865.22

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Solution

The fourth proportional to 31,012.08, 42,796.97 and 16,865.22 is: 23,274.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,012.08 : 42,796.97 = 16,865.22 : x
  2. Step 2: Convert to fraction form
    31,012.08/42,796.97 = 16,865.22/x
  3. Step 3: Cross multiply
    31,012.08x = 42,796.97 × 16,865.22
  4. Step 4: Simplify right side
    31,012.08x = 721,780,230.06
  5. Step 5: Solve for x
    x = 721,780,230.06/31,012.08
  6. Step 6: Final answer
    x = 23,274.16

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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.