Home / 21,617.20-32,431.74-18,353.44

Finding the Fourth Proportional to 21,617.20, 32,431.74 and 18,353.44

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Solution

The fourth proportional to 21,617.20, 32,431.74 and 18,353.44 is: 27,535.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,617.20 : 32,431.74 = 18,353.44 : x
  2. Step 2: Convert to fraction form
    21,617.20/32,431.74 = 18,353.44/x
  3. Step 3: Cross multiply
    21,617.20x = 32,431.74 × 18,353.44
  4. Step 4: Simplify right side
    21,617.20x = 595,233,994.19
  5. Step 5: Solve for x
    x = 595,233,994.19/21,617.20
  6. Step 6: Final answer
    x = 27,535.20

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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.