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Finding the Fourth Proportional to 21,993.32, 32,989.52 and 5,353.44

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Solution

The fourth proportional to 21,993.32, 32,989.52 and 5,353.44 is: 8,030.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,993.32 : 32,989.52 = 5,353.44 : x
  2. Step 2: Convert to fraction form
    21,993.32/32,989.52 = 5,353.44/x
  3. Step 3: Cross multiply
    21,993.32x = 32,989.52 × 5,353.44
  4. Step 4: Simplify right side
    21,993.32x = 176,607,389.18
  5. Step 5: Solve for x
    x = 176,607,389.18/21,993.32
  6. Step 6: Final answer
    x = 8,030.05

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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.