Home / 19,711.52-27,204.19-10,981.07

Finding the Fourth Proportional to 19,711.52, 27,204.19 and 10,981.07

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Solution

The fourth proportional to 19,711.52, 27,204.19 and 10,981.07 is: 15,155.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,711.52 : 27,204.19 = 10,981.07 : x
  2. Step 2: Convert to fraction form
    19,711.52/27,204.19 = 10,981.07/x
  3. Step 3: Cross multiply
    19,711.52x = 27,204.19 × 10,981.07
  4. Step 4: Simplify right side
    19,711.52x = 298,731,053.23
  5. Step 5: Solve for x
    x = 298,731,053.23/19,711.52
  6. Step 6: Final answer
    x = 15,155.15

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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.