Home / 19,985.83-27,582.05-11,489.33

Finding the Fourth Proportional to 19,985.83, 27,582.05 and 11,489.33

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Solution

The fourth proportional to 19,985.83, 27,582.05 and 11,489.33 is: 15,856.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.83 : 27,582.05 = 11,489.33 : x
  2. Step 2: Convert to fraction form
    19,985.83/27,582.05 = 11,489.33/x
  3. Step 3: Cross multiply
    19,985.83x = 27,582.05 × 11,489.33
  4. Step 4: Simplify right side
    19,985.83x = 316,899,372.20
  5. Step 5: Solve for x
    x = 316,899,372.20/19,985.83
  6. Step 6: Final answer
    x = 15,856.20

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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.