Home / 19,906.85-27,471.47-10,955.00

Finding the Fourth Proportional to 19,906.85, 27,471.47 and 10,955.00

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Solution

The fourth proportional to 19,906.85, 27,471.47 and 10,955.00 is: 15,117.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,906.85 : 27,471.47 = 10,955.00 : x
  2. Step 2: Convert to fraction form
    19,906.85/27,471.47 = 10,955.00/x
  3. Step 3: Cross multiply
    19,906.85x = 27,471.47 × 10,955.00
  4. Step 4: Simplify right side
    19,906.85x = 300,949,761.72
  5. Step 5: Solve for x
    x = 300,949,761.72/19,906.85
  6. Step 6: Final answer
    x = 15,117.90

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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.