Home / 31,824.78-47,755.67-13,106.70

Finding the Fourth Proportional to 31,824.78, 47,755.67 and 13,106.70

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Solution

The fourth proportional to 31,824.78, 47,755.67 and 13,106.70 is: 19,667.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,824.78 : 47,755.67 = 13,106.70 : x
  2. Step 2: Convert to fraction form
    31,824.78/47,755.67 = 13,106.70/x
  3. Step 3: Cross multiply
    31,824.78x = 47,755.67 × 13,106.70
  4. Step 4: Simplify right side
    31,824.78x = 625,919,239.99
  5. Step 5: Solve for x
    x = 625,919,239.99/31,824.78
  6. Step 6: Final answer
    x = 19,667.67

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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.