Home / 28,848.05-43,270.50-7,787.80

Finding the Fourth Proportional to 28,848.05, 43,270.50 and 7,787.80

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Solution

The fourth proportional to 28,848.05, 43,270.50 and 7,787.80 is: 11,681.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,848.05 : 43,270.50 = 7,787.80 : x
  2. Step 2: Convert to fraction form
    28,848.05/43,270.50 = 7,787.80/x
  3. Step 3: Cross multiply
    28,848.05x = 43,270.50 × 7,787.80
  4. Step 4: Simplify right side
    28,848.05x = 336,981,839.80
  5. Step 5: Solve for x
    x = 336,981,839.80/28,848.05
  6. Step 6: Final answer
    x = 11,681.27

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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.