Home / 21,695.38-29,939.22-12,263.74

Finding the Fourth Proportional to 21,695.38, 29,939.22 and 12,263.74

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Solution

The fourth proportional to 21,695.38, 29,939.22 and 12,263.74 is: 16,923.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,695.38 : 29,939.22 = 12,263.74 : x
  2. Step 2: Convert to fraction form
    21,695.38/29,939.22 = 12,263.74/x
  3. Step 3: Cross multiply
    21,695.38x = 29,939.22 × 12,263.74
  4. Step 4: Simplify right side
    21,695.38x = 367,166,809.88
  5. Step 5: Solve for x
    x = 367,166,809.88/21,695.38
  6. Step 6: Final answer
    x = 16,923.73

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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.