Home / 19,719.64-29,570.76-7,399

Finding the Fourth Proportional to 19,719.64, 29,570.76 and 7,399

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Solution

The fourth proportional to 19,719.64, 29,570.76 and 7,399 is: 11,095.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,719.64 : 29,570.76 = 7,399 : x
  2. Step 2: Convert to fraction form
    19,719.64/29,570.76 = 7,399/x
  3. Step 3: Cross multiply
    19,719.64x = 29,570.76 × 7,399
  4. Step 4: Simplify right side
    19,719.64x = 218,794,053.24
  5. Step 5: Solve for x
    x = 218,794,053.24/19,719.64
  6. Step 6: Final answer
    x = 11,095.24

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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.