Home / 22,571.14-31,138.34-13,613.67

Finding the Fourth Proportional to 22,571.14, 31,138.34 and 13,613.67

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Solution

The fourth proportional to 22,571.14, 31,138.34 and 13,613.67 is: 18,780.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,571.14 : 31,138.34 = 13,613.67 : x
  2. Step 2: Convert to fraction form
    22,571.14/31,138.34 = 13,613.67/x
  3. Step 3: Cross multiply
    22,571.14x = 31,138.34 × 13,613.67
  4. Step 4: Simplify right side
    22,571.14x = 423,907,085.11
  5. Step 5: Solve for x
    x = 423,907,085.11/22,571.14
  6. Step 6: Final answer
    x = 18,780.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.