Home / 19,906.47-27,472.77-10,955.79

Finding the Fourth Proportional to 19,906.47, 27,472.77 and 10,955.79

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Solution

The fourth proportional to 19,906.47, 27,472.77 and 10,955.79 is: 15,120.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,906.47 : 27,472.77 = 10,955.79 : x
  2. Step 2: Convert to fraction form
    19,906.47/27,472.77 = 10,955.79/x
  3. Step 3: Cross multiply
    19,906.47x = 27,472.77 × 10,955.79
  4. Step 4: Simplify right side
    19,906.47x = 300,985,898.84
  5. Step 5: Solve for x
    x = 300,985,898.84/19,906.47
  6. Step 6: Final answer
    x = 15,120.00

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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.