Home / 21,199.02-29,255.01-11,639.80

Finding the Fourth Proportional to 21,199.02, 29,255.01 and 11,639.80

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Solution

The fourth proportional to 21,199.02, 29,255.01 and 11,639.80 is: 16,063.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,199.02 : 29,255.01 = 11,639.80 : x
  2. Step 2: Convert to fraction form
    21,199.02/29,255.01 = 11,639.80/x
  3. Step 3: Cross multiply
    21,199.02x = 29,255.01 × 11,639.80
  4. Step 4: Simplify right side
    21,199.02x = 340,522,458.32
  5. Step 5: Solve for x
    x = 340,522,458.32/21,199.02
  6. Step 6: Final answer
    x = 16,063.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.