Home / 31,653.20-43,682.28-18,229.16

Finding the Fourth Proportional to 31,653.20, 43,682.28 and 18,229.16

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Solution

The fourth proportional to 31,653.20, 43,682.28 and 18,229.16 is: 25,156.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,653.20 : 43,682.28 = 18,229.16 : x
  2. Step 2: Convert to fraction form
    31,653.20/43,682.28 = 18,229.16/x
  3. Step 3: Cross multiply
    31,653.20x = 43,682.28 × 18,229.16
  4. Step 4: Simplify right side
    31,653.20x = 796,291,271.28
  5. Step 5: Solve for x
    x = 796,291,271.28/31,653.20
  6. Step 6: Final answer
    x = 25,156.74

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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.