Home / 21,201.27-29,255.58-12,251.67

Finding the Fourth Proportional to 21,201.27, 29,255.58 and 12,251.67

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Solution

The fourth proportional to 21,201.27, 29,255.58 and 12,251.67 is: 16,906.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,201.27 : 29,255.58 = 12,251.67 : x
  2. Step 2: Convert to fraction form
    21,201.27/29,255.58 = 12,251.67/x
  3. Step 3: Cross multiply
    21,201.27x = 29,255.58 × 12,251.67
  4. Step 4: Simplify right side
    21,201.27x = 358,429,711.82
  5. Step 5: Solve for x
    x = 358,429,711.82/21,201.27
  6. Step 6: Final answer
    x = 16,906.05

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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.