Home / 19,921.07-29,859.69-17,586.79

Finding the Fourth Proportional to 19,921.07, 29,859.69 and 17,586.79

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Solution

The fourth proportional to 19,921.07, 29,859.69 and 17,586.79 is: 26,360.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,921.07 : 29,859.69 = 17,586.79 : x
  2. Step 2: Convert to fraction form
    19,921.07/29,859.69 = 17,586.79/x
  3. Step 3: Cross multiply
    19,921.07x = 29,859.69 × 17,586.79
  4. Step 4: Simplify right side
    19,921.07x = 525,136,097.50
  5. Step 5: Solve for x
    x = 525,136,097.50/19,921.07
  6. Step 6: Final answer
    x = 26,360.84

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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.