Home / 21,340.44-29,451.06-12,384.66

Finding the Fourth Proportional to 21,340.44, 29,451.06 and 12,384.66

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Solution

The fourth proportional to 21,340.44, 29,451.06 and 12,384.66 is: 17,091.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,340.44 : 29,451.06 = 12,384.66 : x
  2. Step 2: Convert to fraction form
    21,340.44/29,451.06 = 12,384.66/x
  3. Step 3: Cross multiply
    21,340.44x = 29,451.06 × 12,384.66
  4. Step 4: Simplify right side
    21,340.44x = 364,741,364.74
  5. Step 5: Solve for x
    x = 364,741,364.74/21,340.44
  6. Step 6: Final answer
    x = 17,091.56

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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.