Home / 19,743.79-27,227.57-12,927.64

Finding the Fourth Proportional to 19,743.79, 27,227.57 and 12,927.64

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Solution

The fourth proportional to 19,743.79, 27,227.57 and 12,927.64 is: 17,827.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,743.79 : 27,227.57 = 12,927.64 : x
  2. Step 2: Convert to fraction form
    19,743.79/27,227.57 = 12,927.64/x
  3. Step 3: Cross multiply
    19,743.79x = 27,227.57 × 12,927.64
  4. Step 4: Simplify right side
    19,743.79x = 351,988,223.03
  5. Step 5: Solve for x
    x = 351,988,223.03/19,743.79
  6. Step 6: Final answer
    x = 17,827.79

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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.