Home / 31,379.88-43,282.40-26,631.48

Finding the Fourth Proportional to 31,379.88, 43,282.40 and 26,631.48

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Solution

The fourth proportional to 31,379.88, 43,282.40 and 26,631.48 is: 36,732.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,379.88 : 43,282.40 = 26,631.48 : x
  2. Step 2: Convert to fraction form
    31,379.88/43,282.40 = 26,631.48/x
  3. Step 3: Cross multiply
    31,379.88x = 43,282.40 × 26,631.48
  4. Step 4: Simplify right side
    31,379.88x = 1,152,674,369.95
  5. Step 5: Solve for x
    x = 1,152,674,369.95/31,379.88
  6. Step 6: Final answer
    x = 36,732.91

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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.