Home / 21,690.54-32,535.83-8,535.73

Finding the Fourth Proportional to 21,690.54, 32,535.83 and 8,535.73

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Solution

The fourth proportional to 21,690.54, 32,535.83 and 8,535.73 is: 12,803.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,690.54 : 32,535.83 = 8,535.73 : x
  2. Step 2: Convert to fraction form
    21,690.54/32,535.83 = 8,535.73/x
  3. Step 3: Cross multiply
    21,690.54x = 32,535.83 × 8,535.73
  4. Step 4: Simplify right side
    21,690.54x = 277,717,060.21
  5. Step 5: Solve for x
    x = 277,717,060.21/21,690.54
  6. Step 6: Final answer
    x = 12,803.60

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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.