Home / 19,873.86-27,425.39-10,921.37

Finding the Fourth Proportional to 19,873.86, 27,425.39 and 10,921.37

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Solution

The fourth proportional to 19,873.86, 27,425.39 and 10,921.37 is: 15,071.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,873.86 : 27,425.39 = 10,921.37 : x
  2. Step 2: Convert to fraction form
    19,873.86/27,425.39 = 10,921.37/x
  3. Step 3: Cross multiply
    19,873.86x = 27,425.39 × 10,921.37
  4. Step 4: Simplify right side
    19,873.86x = 299,522,639.85
  5. Step 5: Solve for x
    x = 299,522,639.85/19,873.86
  6. Step 6: Final answer
    x = 15,071.19

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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.