Home / 31,758.75-43,830.68-18,333.59

Finding the Fourth Proportional to 31,758.75, 43,830.68 and 18,333.59

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Solution

The fourth proportional to 31,758.75, 43,830.68 and 18,333.59 is: 25,302.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,758.75 : 43,830.68 = 18,333.59 : x
  2. Step 2: Convert to fraction form
    31,758.75/43,830.68 = 18,333.59/x
  3. Step 3: Cross multiply
    31,758.75x = 43,830.68 × 18,333.59
  4. Step 4: Simplify right side
    31,758.75x = 803,573,405.72
  5. Step 5: Solve for x
    x = 803,573,405.72/31,758.75
  6. Step 6: Final answer
    x = 25,302.43

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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.