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Finding the Fourth Proportional to 32,855.33, 45,334.01 and 20,111.40

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Solution

The fourth proportional to 32,855.33, 45,334.01 and 20,111.40 is: 27,749.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,855.33 : 45,334.01 = 20,111.40 : x
  2. Step 2: Convert to fraction form
    32,855.33/45,334.01 = 20,111.40/x
  3. Step 3: Cross multiply
    32,855.33x = 45,334.01 × 20,111.40
  4. Step 4: Simplify right side
    32,855.33x = 911,730,458.99
  5. Step 5: Solve for x
    x = 911,730,458.99/32,855.33
  6. Step 6: Final answer
    x = 27,749.85

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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.