Home / 31,729.05-47,589.98-8,357.31

Finding the Fourth Proportional to 31,729.05, 47,589.98 and 8,357.31

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Solution

The fourth proportional to 31,729.05, 47,589.98 and 8,357.31 is: 12,535.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,729.05 : 47,589.98 = 8,357.31 : x
  2. Step 2: Convert to fraction form
    31,729.05/47,589.98 = 8,357.31/x
  3. Step 3: Cross multiply
    31,729.05x = 47,589.98 × 8,357.31
  4. Step 4: Simplify right side
    31,729.05x = 397,724,173.97
  5. Step 5: Solve for x
    x = 397,724,173.97/31,729.05
  6. Step 6: Final answer
    x = 12,535.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.