Home / 21,336.02-29,443.74-11,904.38

Finding the Fourth Proportional to 21,336.02, 29,443.74 and 11,904.38

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Solution

The fourth proportional to 21,336.02, 29,443.74 and 11,904.38 is: 16,428.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,336.02 : 29,443.74 = 11,904.38 : x
  2. Step 2: Convert to fraction form
    21,336.02/29,443.74 = 11,904.38/x
  3. Step 3: Cross multiply
    21,336.02x = 29,443.74 × 11,904.38
  4. Step 4: Simplify right side
    21,336.02x = 350,509,469.58
  5. Step 5: Solve for x
    x = 350,509,469.58/21,336.02
  6. Step 6: Final answer
    x = 16,428.06

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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.