Home / 19,470.27-26,879.31-15,599.79

Finding the Fourth Proportional to 19,470.27, 26,879.31 and 15,599.79

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Solution

The fourth proportional to 19,470.27, 26,879.31 and 15,599.79 is: 21,535.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,470.27 : 26,879.31 = 15,599.79 : x
  2. Step 2: Convert to fraction form
    19,470.27/26,879.31 = 15,599.79/x
  3. Step 3: Cross multiply
    19,470.27x = 26,879.31 × 15,599.79
  4. Step 4: Simplify right side
    19,470.27x = 419,311,591.34
  5. Step 5: Solve for x
    x = 419,311,591.34/19,470.27
  6. Step 6: Final answer
    x = 21,535.99

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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.