Home / 28,973.22-39,983.61-18,908.10

Finding the Fourth Proportional to 28,973.22, 39,983.61 and 18,908.10

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Solution

The fourth proportional to 28,973.22, 39,983.61 and 18,908.10 is: 26,093.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,973.22 : 39,983.61 = 18,908.10 : x
  2. Step 2: Convert to fraction form
    28,973.22/39,983.61 = 18,908.10/x
  3. Step 3: Cross multiply
    28,973.22x = 39,983.61 × 18,908.10
  4. Step 4: Simplify right side
    28,973.22x = 756,014,096.24
  5. Step 5: Solve for x
    x = 756,014,096.24/28,973.22
  6. Step 6: Final answer
    x = 26,093.55

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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.