Home / 31,475.22-47,198.70-9,280.80

Finding the Fourth Proportional to 31,475.22, 47,198.70 and 9,280.80

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Solution

The fourth proportional to 31,475.22, 47,198.70 and 9,280.80 is: 13,917.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,475.22 : 47,198.70 = 9,280.80 : x
  2. Step 2: Convert to fraction form
    31,475.22/47,198.70 = 9,280.80/x
  3. Step 3: Cross multiply
    31,475.22x = 47,198.70 × 9,280.80
  4. Step 4: Simplify right side
    31,475.22x = 438,041,694.96
  5. Step 5: Solve for x
    x = 438,041,694.96/31,475.22
  6. Step 6: Final answer
    x = 13,917.03

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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.