Home / 27,748.14-38,292.56-15,172.88

Finding the Fourth Proportional to 27,748.14, 38,292.56 and 15,172.88

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Solution

The fourth proportional to 27,748.14, 38,292.56 and 15,172.88 is: 20,938.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,748.14 : 38,292.56 = 15,172.88 : x
  2. Step 2: Convert to fraction form
    27,748.14/38,292.56 = 15,172.88/x
  3. Step 3: Cross multiply
    27,748.14x = 38,292.56 × 15,172.88
  4. Step 4: Simplify right side
    27,748.14x = 581,008,417.77
  5. Step 5: Solve for x
    x = 581,008,417.77/27,748.14
  6. Step 6: Final answer
    x = 20,938.64

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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.