Home / 21,187.03-29,238.02-11,627.08

Finding the Fourth Proportional to 21,187.03, 29,238.02 and 11,627.08

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Solution

The fourth proportional to 21,187.03, 29,238.02 and 11,627.08 is: 16,045.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,187.03 : 29,238.02 = 11,627.08 : x
  2. Step 2: Convert to fraction form
    21,187.03/29,238.02 = 11,627.08/x
  3. Step 3: Cross multiply
    21,187.03x = 29,238.02 × 11,627.08
  4. Step 4: Simplify right side
    21,187.03x = 339,952,797.58
  5. Step 5: Solve for x
    x = 339,952,797.58/21,187.03
  6. Step 6: Final answer
    x = 16,045.33

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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.