Home / 21,454.46-29,600.19-13,906.67

Finding the Fourth Proportional to 21,454.46, 29,600.19 and 13,906.67

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Solution

The fourth proportional to 21,454.46, 29,600.19 and 13,906.67 is: 19,186.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454.46 : 29,600.19 = 13,906.67 : x
  2. Step 2: Convert to fraction form
    21,454.46/29,600.19 = 13,906.67/x
  3. Step 3: Cross multiply
    21,454.46x = 29,600.19 × 13,906.67
  4. Step 4: Simplify right side
    21,454.46x = 411,640,148.27
  5. Step 5: Solve for x
    x = 411,640,148.27/21,454.46
  6. Step 6: Final answer
    x = 19,186.70

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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.