Home / 31,840.29-47,747.34-13,829.67

Finding the Fourth Proportional to 31,840.29, 47,747.34 and 13,829.67

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Solution

The fourth proportional to 31,840.29, 47,747.34 and 13,829.67 is: 20,738.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,840.29 : 47,747.34 = 13,829.67 : x
  2. Step 2: Convert to fraction form
    31,840.29/47,747.34 = 13,829.67/x
  3. Step 3: Cross multiply
    31,840.29x = 47,747.34 × 13,829.67
  4. Step 4: Simplify right side
    31,840.29x = 660,329,955.58
  5. Step 5: Solve for x
    x = 660,329,955.58/31,840.29
  6. Step 6: Final answer
    x = 20,738.82

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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.