Home / 19,841.31-27,381.61-10,889.39

Finding the Fourth Proportional to 19,841.31, 27,381.61 and 10,889.39

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Solution

The fourth proportional to 19,841.31, 27,381.61 and 10,889.39 is: 15,027.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,841.31 : 27,381.61 = 10,889.39 : x
  2. Step 2: Convert to fraction form
    19,841.31/27,381.61 = 10,889.39/x
  3. Step 3: Cross multiply
    19,841.31x = 27,381.61 × 10,889.39
  4. Step 4: Simplify right side
    19,841.31x = 298,169,030.12
  5. Step 5: Solve for x
    x = 298,169,030.12/19,841.31
  6. Step 6: Final answer
    x = 15,027.69

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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.