Home / 19,851.57-27,395.16-10,899.21

Finding the Fourth Proportional to 19,851.57, 27,395.16 and 10,899.21

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Solution

The fourth proportional to 19,851.57, 27,395.16 and 10,899.21 is: 15,040.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,851.57 : 27,395.16 = 10,899.21 : x
  2. Step 2: Convert to fraction form
    19,851.57/27,395.16 = 10,899.21/x
  3. Step 3: Cross multiply
    19,851.57x = 27,395.16 × 10,899.21
  4. Step 4: Simplify right side
    19,851.57x = 298,585,601.82
  5. Step 5: Solve for x
    x = 298,585,601.82/19,851.57
  6. Step 6: Final answer
    x = 15,040.91

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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.