Home / 21,416.88-32,122.08-5,835.72

Finding the Fourth Proportional to 21,416.88, 32,122.08 and 5,835.72

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Solution

The fourth proportional to 21,416.88, 32,122.08 and 5,835.72 is: 8,752.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,416.88 : 32,122.08 = 5,835.72 : x
  2. Step 2: Convert to fraction form
    21,416.88/32,122.08 = 5,835.72/x
  3. Step 3: Cross multiply
    21,416.88x = 32,122.08 × 5,835.72
  4. Step 4: Simplify right side
    21,416.88x = 187,455,464.70
  5. Step 5: Solve for x
    x = 187,455,464.70/21,416.88
  6. Step 6: Final answer
    x = 8,752.70

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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.