Home / 31,116.91-42,977.19-22,656.86

Finding the Fourth Proportional to 31,116.91, 42,977.19 and 22,656.86

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Solution

The fourth proportional to 31,116.91, 42,977.19 and 22,656.86 is: 31,292.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,116.91 : 42,977.19 = 22,656.86 : x
  2. Step 2: Convert to fraction form
    31,116.91/42,977.19 = 22,656.86/x
  3. Step 3: Cross multiply
    31,116.91x = 42,977.19 × 22,656.86
  4. Step 4: Simplify right side
    31,116.91x = 973,728,177.02
  5. Step 5: Solve for x
    x = 973,728,177.02/31,116.91
  6. Step 6: Final answer
    x = 31,292.58

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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.