Home / 21,589.60-32,347.12-16,855.12

Finding the Fourth Proportional to 21,589.60, 32,347.12 and 16,855.12

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Solution

The fourth proportional to 21,589.60, 32,347.12 and 16,855.12 is: 25,253.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,589.60 : 32,347.12 = 16,855.12 : x
  2. Step 2: Convert to fraction form
    21,589.60/32,347.12 = 16,855.12/x
  3. Step 3: Cross multiply
    21,589.60x = 32,347.12 × 16,855.12
  4. Step 4: Simplify right side
    21,589.60x = 545,214,589.25
  5. Step 5: Solve for x
    x = 545,214,589.25/21,589.60
  6. Step 6: Final answer
    x = 25,253.58

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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.