Home / 31,453.75-47,062.86-18,757.09

Finding the Fourth Proportional to 31,453.75, 47,062.86 and 18,757.09

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Solution

The fourth proportional to 31,453.75, 47,062.86 and 18,757.09 is: 28,065.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,453.75 : 47,062.86 = 18,757.09 : x
  2. Step 2: Convert to fraction form
    31,453.75/47,062.86 = 18,757.09/x
  3. Step 3: Cross multiply
    31,453.75x = 47,062.86 × 18,757.09
  4. Step 4: Simplify right side
    31,453.75x = 882,762,300.68
  5. Step 5: Solve for x
    x = 882,762,300.68/31,453.75
  6. Step 6: Final answer
    x = 28,065.41

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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.