Home / 27,921.08-38,491.26-19,960.40

Finding the Fourth Proportional to 27,921.08, 38,491.26 and 19,960.40

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Solution

The fourth proportional to 27,921.08, 38,491.26 and 19,960.40 is: 27,516.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.08 : 38,491.26 = 19,960.40 : x
  2. Step 2: Convert to fraction form
    27,921.08/38,491.26 = 19,960.40/x
  3. Step 3: Cross multiply
    27,921.08x = 38,491.26 × 19,960.40
  4. Step 4: Simplify right side
    27,921.08x = 768,300,946.10
  5. Step 5: Solve for x
    x = 768,300,946.10/27,921.08
  6. Step 6: Final answer
    x = 27,516.88

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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.