Home / 18,519.05-27,746.24-15,419.00

Finding the Fourth Proportional to 18,519.05, 27,746.24 and 15,419.00

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Solution

The fourth proportional to 18,519.05, 27,746.24 and 15,419.00 is: 23,101.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.05 : 27,746.24 = 15,419.00 : x
  2. Step 2: Convert to fraction form
    18,519.05/27,746.24 = 15,419.00/x
  3. Step 3: Cross multiply
    18,519.05x = 27,746.24 × 15,419.00
  4. Step 4: Simplify right side
    18,519.05x = 427,819,058.73
  5. Step 5: Solve for x
    x = 427,819,058.73/18,519.05
  6. Step 6: Final answer
    x = 23,101.57

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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.