Home / 21,311.94-29,409.88-12,237.04

Finding the Fourth Proportional to 21,311.94, 29,409.88 and 12,237.04

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Solution

The fourth proportional to 21,311.94, 29,409.88 and 12,237.04 is: 16,886.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,311.94 : 29,409.88 = 12,237.04 : x
  2. Step 2: Convert to fraction form
    21,311.94/29,409.88 = 12,237.04/x
  3. Step 3: Cross multiply
    21,311.94x = 29,409.88 × 12,237.04
  4. Step 4: Simplify right side
    21,311.94x = 359,889,877.96
  5. Step 5: Solve for x
    x = 359,889,877.96/21,311.94
  6. Step 6: Final answer
    x = 16,886.77

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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.