Home / 28,608.65-42,914.86-9,890.49

Finding the Fourth Proportional to 28,608.65, 42,914.86 and 9,890.49

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Solution

The fourth proportional to 28,608.65, 42,914.86 and 9,890.49 is: 14,836.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,608.65 : 42,914.86 = 9,890.49 : x
  2. Step 2: Convert to fraction form
    28,608.65/42,914.86 = 9,890.49/x
  3. Step 3: Cross multiply
    28,608.65x = 42,914.86 × 9,890.49
  4. Step 4: Simplify right side
    28,608.65x = 424,448,968.96
  5. Step 5: Solve for x
    x = 424,448,968.96/28,608.65
  6. Step 6: Final answer
    x = 14,836.39

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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.