Home / 19,386.20-29,012.10-11,600.60

Finding the Fourth Proportional to 19,386.20, 29,012.10 and 11,600.60

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Solution

The fourth proportional to 19,386.20, 29,012.10 and 11,600.60 is: 17,360.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,386.20 : 29,012.10 = 11,600.60 : x
  2. Step 2: Convert to fraction form
    19,386.20/29,012.10 = 11,600.60/x
  3. Step 3: Cross multiply
    19,386.20x = 29,012.10 × 11,600.60
  4. Step 4: Simplify right side
    19,386.20x = 336,557,767.26
  5. Step 5: Solve for x
    x = 336,557,767.26/19,386.20
  6. Step 6: Final answer
    x = 17,360.69

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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.