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Finding the Fourth Proportional to 21,835.77, 32,752.08 and 7,794.21

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Solution

The fourth proportional to 21,835.77, 32,752.08 and 7,794.21 is: 11,690.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,835.77 : 32,752.08 = 7,794.21 : x
  2. Step 2: Convert to fraction form
    21,835.77/32,752.08 = 7,794.21/x
  3. Step 3: Cross multiply
    21,835.77x = 32,752.08 × 7,794.21
  4. Step 4: Simplify right side
    21,835.77x = 255,276,589.46
  5. Step 5: Solve for x
    x = 255,276,589.46/21,835.77
  6. Step 6: Final answer
    x = 11,690.75

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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.