Home / 19,788.36-29,693.47-11,028.21

Finding the Fourth Proportional to 19,788.36, 29,693.47 and 11,028.21

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Solution

The fourth proportional to 19,788.36, 29,693.47 and 11,028.21 is: 16,548.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,788.36 : 29,693.47 = 11,028.21 : x
  2. Step 2: Convert to fraction form
    19,788.36/29,693.47 = 11,028.21/x
  3. Step 3: Cross multiply
    19,788.36x = 29,693.47 × 11,028.21
  4. Step 4: Simplify right side
    19,788.36x = 327,465,822.79
  5. Step 5: Solve for x
    x = 327,465,822.79/19,788.36
  6. Step 6: Final answer
    x = 16,548.41

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1.5x scale

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.