Home / 31,802.28-43,883.90-18,377.86

Finding the Fourth Proportional to 31,802.28, 43,883.90 and 18,377.86

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Solution

The fourth proportional to 31,802.28, 43,883.90 and 18,377.86 is: 25,359.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,802.28 : 43,883.90 = 18,377.86 : x
  2. Step 2: Convert to fraction form
    31,802.28/43,883.90 = 18,377.86/x
  3. Step 3: Cross multiply
    31,802.28x = 43,883.90 × 18,377.86
  4. Step 4: Simplify right side
    31,802.28x = 806,492,170.45
  5. Step 5: Solve for x
    x = 806,492,170.45/31,802.28
  6. Step 6: Final answer
    x = 25,359.57

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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.