Home / 31,499.74-47,257.74-11,778.44

Finding the Fourth Proportional to 31,499.74, 47,257.74 and 11,778.44

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Solution

The fourth proportional to 31,499.74, 47,257.74 and 11,778.44 is: 17,670.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,499.74 : 47,257.74 = 11,778.44 : x
  2. Step 2: Convert to fraction form
    31,499.74/47,257.74 = 11,778.44/x
  3. Step 3: Cross multiply
    31,499.74x = 47,257.74 × 11,778.44
  4. Step 4: Simplify right side
    31,499.74x = 556,622,455.13
  5. Step 5: Solve for x
    x = 556,622,455.13/31,499.74
  6. Step 6: Final answer
    x = 17,670.70

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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.