Home / 19,841.81-27,380.79-10,889.13

Finding the Fourth Proportional to 19,841.81, 27,380.79 and 10,889.13

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Solution

The fourth proportional to 19,841.81, 27,380.79 and 10,889.13 is: 15,026.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,841.81 : 27,380.79 = 10,889.13 : x
  2. Step 2: Convert to fraction form
    19,841.81/27,380.79 = 10,889.13/x
  3. Step 3: Cross multiply
    19,841.81x = 27,380.79 × 10,889.13
  4. Step 4: Simplify right side
    19,841.81x = 298,152,981.81
  5. Step 5: Solve for x
    x = 298,152,981.81/19,841.81
  6. Step 6: Final answer
    x = 15,026.50

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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.