Home / 21,657.03-29,886.92-12,704.69

Finding the Fourth Proportional to 21,657.03, 29,886.92 and 12,704.69

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Solution

The fourth proportional to 21,657.03, 29,886.92 and 12,704.69 is: 17,532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,657.03 : 29,886.92 = 12,704.69 : x
  2. Step 2: Convert to fraction form
    21,657.03/29,886.92 = 12,704.69/x
  3. Step 3: Cross multiply
    21,657.03x = 29,886.92 × 12,704.69
  4. Step 4: Simplify right side
    21,657.03x = 379,703,935.98
  5. Step 5: Solve for x
    x = 379,703,935.98/21,657.03
  6. Step 6: Final answer
    x = 17,532.60

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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.