Home / 21,704.08-29,951.37-12,752.40

Finding the Fourth Proportional to 21,704.08, 29,951.37 and 12,752.40

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Solution

The fourth proportional to 21,704.08, 29,951.37 and 12,752.40 is: 17,598.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,704.08 : 29,951.37 = 12,752.40 : x
  2. Step 2: Convert to fraction form
    21,704.08/29,951.37 = 12,752.40/x
  3. Step 3: Cross multiply
    21,704.08x = 29,951.37 × 12,752.40
  4. Step 4: Simplify right side
    21,704.08x = 381,951,850.79
  5. Step 5: Solve for x
    x = 381,951,850.79/21,704.08
  6. Step 6: Final answer
    x = 17,598.16

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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.