Home / 31,310.76-43,217.02-19,367.16

Finding the Fourth Proportional to 31,310.76, 43,217.02 and 19,367.16

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Solution

The fourth proportional to 31,310.76, 43,217.02 and 19,367.16 is: 26,731.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,310.76 : 43,217.02 = 19,367.16 : x
  2. Step 2: Convert to fraction form
    31,310.76/43,217.02 = 19,367.16/x
  3. Step 3: Cross multiply
    31,310.76x = 43,217.02 × 19,367.16
  4. Step 4: Simplify right side
    31,310.76x = 836,990,941.06
  5. Step 5: Solve for x
    x = 836,990,941.06/31,310.76
  6. Step 6: Final answer
    x = 26,731.74

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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.