Home / 28,872.63-43,290.27-18,981.93

Finding the Fourth Proportional to 28,872.63, 43,290.27 and 18,981.93

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Solution

The fourth proportional to 28,872.63, 43,290.27 and 18,981.93 is: 28,460.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,872.63 : 43,290.27 = 18,981.93 : x
  2. Step 2: Convert to fraction form
    28,872.63/43,290.27 = 18,981.93/x
  3. Step 3: Cross multiply
    28,872.63x = 43,290.27 × 18,981.93
  4. Step 4: Simplify right side
    28,872.63x = 821,732,874.82
  5. Step 5: Solve for x
    x = 821,732,874.82/28,872.63
  6. Step 6: Final answer
    x = 28,460.62

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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.