Home / 27,672.16-38,195.76-19,291.36

Finding the Fourth Proportional to 27,672.16, 38,195.76 and 19,291.36

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Solution

The fourth proportional to 27,672.16, 38,195.76 and 19,291.36 is: 26,627.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,672.16 : 38,195.76 = 19,291.36 : x
  2. Step 2: Convert to fraction form
    27,672.16/38,195.76 = 19,291.36/x
  3. Step 3: Cross multiply
    27,672.16x = 38,195.76 × 19,291.36
  4. Step 4: Simplify right side
    27,672.16x = 736,848,156.63
  5. Step 5: Solve for x
    x = 736,848,156.63/27,672.16
  6. Step 6: Final answer
    x = 26,627.78

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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.