Home / 21,704.04-29,951.64-12,272.40

Finding the Fourth Proportional to 21,704.04, 29,951.64 and 12,272.40

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Solution

The fourth proportional to 21,704.04, 29,951.64 and 12,272.40 is: 16,935.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,704.04 : 29,951.64 = 12,272.40 : x
  2. Step 2: Convert to fraction form
    21,704.04/29,951.64 = 12,272.40/x
  3. Step 3: Cross multiply
    21,704.04x = 29,951.64 × 12,272.40
  4. Step 4: Simplify right side
    21,704.04x = 367,578,506.74
  5. Step 5: Solve for x
    x = 367,578,506.74/21,704.04
  6. Step 6: Final answer
    x = 16,935.95

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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.