Home / 19,315.33-26,648.09-15,793.45

Finding the Fourth Proportional to 19,315.33, 26,648.09 and 15,793.45

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Solution

The fourth proportional to 19,315.33, 26,648.09 and 15,793.45 is: 21,789.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315.33 : 26,648.09 = 15,793.45 : x
  2. Step 2: Convert to fraction form
    19,315.33/26,648.09 = 15,793.45/x
  3. Step 3: Cross multiply
    19,315.33x = 26,648.09 × 15,793.45
  4. Step 4: Simplify right side
    19,315.33x = 420,865,190.65
  5. Step 5: Solve for x
    x = 420,865,190.65/19,315.33
  6. Step 6: Final answer
    x = 21,789.18

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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.