Home / 21,672.32-29,908.02-12,240.94

Finding the Fourth Proportional to 21,672.32, 29,908.02 and 12,240.94

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Solution

The fourth proportional to 21,672.32, 29,908.02 and 12,240.94 is: 16,892.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,672.32 : 29,908.02 = 12,240.94 : x
  2. Step 2: Convert to fraction form
    21,672.32/29,908.02 = 12,240.94/x
  3. Step 3: Cross multiply
    21,672.32x = 29,908.02 × 12,240.94
  4. Step 4: Simplify right side
    21,672.32x = 366,102,278.34
  5. Step 5: Solve for x
    x = 366,102,278.34/21,672.32
  6. Step 6: Final answer
    x = 16,892.62

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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.