Home / 19,769.98-29,653.90-4,978.87

Finding the Fourth Proportional to 19,769.98, 29,653.90 and 4,978.87

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Solution

The fourth proportional to 19,769.98, 29,653.90 and 4,978.87 is: 7,468.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,769.98 : 29,653.90 = 4,978.87 : x
  2. Step 2: Convert to fraction form
    19,769.98/29,653.90 = 4,978.87/x
  3. Step 3: Cross multiply
    19,769.98x = 29,653.90 × 4,978.87
  4. Step 4: Simplify right side
    19,769.98x = 147,642,913.09
  5. Step 5: Solve for x
    x = 147,642,913.09/19,769.98
  6. Step 6: Final answer
    x = 7,468.04

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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.