Home / 31,575.75-43,583.57-18,666.98

Finding the Fourth Proportional to 31,575.75, 43,583.57 and 18,666.98

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Solution

The fourth proportional to 31,575.75, 43,583.57 and 18,666.98 is: 25,765.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,575.75 : 43,583.57 = 18,666.98 : x
  2. Step 2: Convert to fraction form
    31,575.75/43,583.57 = 18,666.98/x
  3. Step 3: Cross multiply
    31,575.75x = 43,583.57 × 18,666.98
  4. Step 4: Simplify right side
    31,575.75x = 813,573,629.52
  5. Step 5: Solve for x
    x = 813,573,629.52/31,575.75
  6. Step 6: Final answer
    x = 25,765.77

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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.