Home / 31,589.62-47,343.32-12,847.80

Finding the Fourth Proportional to 31,589.62, 47,343.32 and 12,847.80

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Solution

The fourth proportional to 31,589.62, 47,343.32 and 12,847.80 is: 19,254.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,589.62 : 47,343.32 = 12,847.80 : x
  2. Step 2: Convert to fraction form
    31,589.62/47,343.32 = 12,847.80/x
  3. Step 3: Cross multiply
    31,589.62x = 47,343.32 × 12,847.80
  4. Step 4: Simplify right side
    31,589.62x = 608,257,506.70
  5. Step 5: Solve for x
    x = 608,257,506.70/31,589.62
  6. Step 6: Final answer
    x = 19,254.98

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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.