Home / 19,789.47-29,626.74-13,859.01

Finding the Fourth Proportional to 19,789.47, 29,626.74 and 13,859.01

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Solution

The fourth proportional to 19,789.47, 29,626.74 and 13,859.01 is: 20,748.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,789.47 : 29,626.74 = 13,859.01 : x
  2. Step 2: Convert to fraction form
    19,789.47/29,626.74 = 13,859.01/x
  3. Step 3: Cross multiply
    19,789.47x = 29,626.74 × 13,859.01
  4. Step 4: Simplify right side
    19,789.47x = 410,597,285.93
  5. Step 5: Solve for x
    x = 410,597,285.93/19,789.47
  6. Step 6: Final answer
    x = 20,748.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.