Home / 18,676.80-28,143.36-15,462.24

Finding the Fourth Proportional to 18,676.80, 28,143.36 and 15,462.24

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Solution

The fourth proportional to 18,676.80, 28,143.36 and 15,462.24 is: 23,299.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676.80 : 28,143.36 = 15,462.24 : x
  2. Step 2: Convert to fraction form
    18,676.80/28,143.36 = 15,462.24/x
  3. Step 3: Cross multiply
    18,676.80x = 28,143.36 × 15,462.24
  4. Step 4: Simplify right side
    18,676.80x = 435,159,386.73
  5. Step 5: Solve for x
    x = 435,159,386.73/18,676.80
  6. Step 6: Final answer
    x = 23,299.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.