Home / 19,985.90-27,580.16-11,033.68

Finding the Fourth Proportional to 19,985.90, 27,580.16 and 11,033.68

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Solution

The fourth proportional to 19,985.90, 27,580.16 and 11,033.68 is: 15,226.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.90 : 27,580.16 = 11,033.68 : x
  2. Step 2: Convert to fraction form
    19,985.90/27,580.16 = 11,033.68/x
  3. Step 3: Cross multiply
    19,985.90x = 27,580.16 × 11,033.68
  4. Step 4: Simplify right side
    19,985.90x = 304,310,659.79
  5. Step 5: Solve for x
    x = 304,310,659.79/19,985.90
  6. Step 6: Final answer
    x = 15,226.27

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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.