Home / 21,486.02-32,230.59-8,993.48

Finding the Fourth Proportional to 21,486.02, 32,230.59 and 8,993.48

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Solution

The fourth proportional to 21,486.02, 32,230.59 and 8,993.48 is: 13,490.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,486.02 : 32,230.59 = 8,993.48 : x
  2. Step 2: Convert to fraction form
    21,486.02/32,230.59 = 8,993.48/x
  3. Step 3: Cross multiply
    21,486.02x = 32,230.59 × 8,993.48
  4. Step 4: Simplify right side
    21,486.02x = 289,865,121.59
  5. Step 5: Solve for x
    x = 289,865,121.59/21,486.02
  6. Step 6: Final answer
    x = 13,490.87

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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.