Home / 19,703.27-27,191.56-11,320.31

Finding the Fourth Proportional to 19,703.27, 27,191.56 and 11,320.31

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Solution

The fourth proportional to 19,703.27, 27,191.56 and 11,320.31 is: 15,622.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,703.27 : 27,191.56 = 11,320.31 : x
  2. Step 2: Convert to fraction form
    19,703.27/27,191.56 = 11,320.31/x
  3. Step 3: Cross multiply
    19,703.27x = 27,191.56 × 11,320.31
  4. Step 4: Simplify right side
    19,703.27x = 307,816,831.98
  5. Step 5: Solve for x
    x = 307,816,831.98/19,703.27
  6. Step 6: Final answer
    x = 15,622.63

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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.