Home / 18,992.45-28,488.70-4,952.47

Finding the Fourth Proportional to 18,992.45, 28,488.70 and 4,952.47

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Solution

The fourth proportional to 18,992.45, 28,488.70 and 4,952.47 is: 7,428.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,992.45 : 28,488.70 = 4,952.47 : x
  2. Step 2: Convert to fraction form
    18,992.45/28,488.70 = 4,952.47/x
  3. Step 3: Cross multiply
    18,992.45x = 28,488.70 × 4,952.47
  4. Step 4: Simplify right side
    18,992.45x = 141,089,264.88
  5. Step 5: Solve for x
    x = 141,089,264.88/18,992.45
  6. Step 6: Final answer
    x = 7,428.70

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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.