Home / 23,126.65-31,914.78-12,516.28

Finding the Fourth Proportional to 23,126.65, 31,914.78 and 12,516.28

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Solution

The fourth proportional to 23,126.65, 31,914.78 and 12,516.28 is: 17,272.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,126.65 : 31,914.78 = 12,516.28 : x
  2. Step 2: Convert to fraction form
    23,126.65/31,914.78 = 12,516.28/x
  3. Step 3: Cross multiply
    23,126.65x = 31,914.78 × 12,516.28
  4. Step 4: Simplify right side
    23,126.65x = 399,454,322.62
  5. Step 5: Solve for x
    x = 399,454,322.62/23,126.65
  6. Step 6: Final answer
    x = 17,272.47

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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.