Home / 31,579.85-43,576.49-18,833.74

Finding the Fourth Proportional to 31,579.85, 43,576.49 and 18,833.74

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Solution

The fourth proportional to 31,579.85, 43,576.49 and 18,833.74 is: 25,988.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,579.85 : 43,576.49 = 18,833.74 : x
  2. Step 2: Convert to fraction form
    31,579.85/43,576.49 = 18,833.74/x
  3. Step 3: Cross multiply
    31,579.85x = 43,576.49 × 18,833.74
  4. Step 4: Simplify right side
    31,579.85x = 820,708,220.92
  5. Step 5: Solve for x
    x = 820,708,220.92/31,579.85
  6. Step 6: Final answer
    x = 25,988.35

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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.