Home / 19,922.76-27,487.76-12,853.28

Finding the Fourth Proportional to 19,922.76, 27,487.76 and 12,853.28

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Solution

The fourth proportional to 19,922.76, 27,487.76 and 12,853.28 is: 17,733.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,922.76 : 27,487.76 = 12,853.28 : x
  2. Step 2: Convert to fraction form
    19,922.76/27,487.76 = 12,853.28/x
  3. Step 3: Cross multiply
    19,922.76x = 27,487.76 × 12,853.28
  4. Step 4: Simplify right side
    19,922.76x = 353,307,880.31
  5. Step 5: Solve for x
    x = 353,307,880.31/19,922.76
  6. Step 6: Final answer
    x = 17,733.88

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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.