Home / 22,109.60-33,164.40-21,085.60

Finding the Fourth Proportional to 22,109.60, 33,164.40 and 21,085.60

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Solution

The fourth proportional to 22,109.60, 33,164.40 and 21,085.60 is: 31,628.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,109.60 : 33,164.40 = 21,085.60 : x
  2. Step 2: Convert to fraction form
    22,109.60/33,164.40 = 21,085.60/x
  3. Step 3: Cross multiply
    22,109.60x = 33,164.40 × 21,085.60
  4. Step 4: Simplify right side
    22,109.60x = 699,291,272.64
  5. Step 5: Solve for x
    x = 699,291,272.64/22,109.60
  6. Step 6: Final answer
    x = 31,628.40

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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.