Home / 19,873.26-27,425.60-10,921

Finding the Fourth Proportional to 19,873.26, 27,425.60 and 10,921

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Solution

The fourth proportional to 19,873.26, 27,425.60 and 10,921 is: 15,071.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,873.26 : 27,425.60 = 10,921 : x
  2. Step 2: Convert to fraction form
    19,873.26/27,425.60 = 10,921/x
  3. Step 3: Cross multiply
    19,873.26x = 27,425.60 × 10,921
  4. Step 4: Simplify right side
    19,873.26x = 299,514,977.60
  5. Step 5: Solve for x
    x = 299,514,977.60/19,873.26
  6. Step 6: Final answer
    x = 15,071.26

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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.