Home / 19,531.26-26,921.70-15,274.98

Finding the Fourth Proportional to 19,531.26, 26,921.70 and 15,274.98

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Solution

The fourth proportional to 19,531.26, 26,921.70 and 15,274.98 is: 21,054.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,531.26 : 26,921.70 = 15,274.98 : x
  2. Step 2: Convert to fraction form
    19,531.26/26,921.70 = 15,274.98/x
  3. Step 3: Cross multiply
    19,531.26x = 26,921.70 × 15,274.98
  4. Step 4: Simplify right side
    19,531.26x = 411,228,429.07
  5. Step 5: Solve for x
    x = 411,228,429.07/19,531.26
  6. Step 6: Final answer
    x = 21,054.88

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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.