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Finding the Fourth Proportional to 21,993.35, 32,990.04 and 5,353.39

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Solution

The fourth proportional to 21,993.35, 32,990.04 and 5,353.39 is: 8,030.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,993.35 : 32,990.04 = 5,353.39 : x
  2. Step 2: Convert to fraction form
    21,993.35/32,990.04 = 5,353.39/x
  3. Step 3: Cross multiply
    21,993.35x = 32,990.04 × 5,353.39
  4. Step 4: Simplify right side
    21,993.35x = 176,608,467.76
  5. Step 5: Solve for x
    x = 176,608,467.76/21,993.35
  6. Step 6: Final answer
    x = 8,030.08

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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.