Home / 31,437.09-47,147.67-12,711.60

Finding the Fourth Proportional to 31,437.09, 47,147.67 and 12,711.60

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Solution

The fourth proportional to 31,437.09, 47,147.67 and 12,711.60 is: 19,064.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,437.09 : 47,147.67 = 12,711.60 : x
  2. Step 2: Convert to fraction form
    31,437.09/47,147.67 = 12,711.60/x
  3. Step 3: Cross multiply
    31,437.09x = 47,147.67 × 12,711.60
  4. Step 4: Simplify right side
    31,437.09x = 599,322,321.97
  5. Step 5: Solve for x
    x = 599,322,321.97/31,437.09
  6. Step 6: Final answer
    x = 19,064.18

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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.