Home / 28,672.07-42,974.98-11,127.02

Finding the Fourth Proportional to 28,672.07, 42,974.98 and 11,127.02

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Solution

The fourth proportional to 28,672.07, 42,974.98 and 11,127.02 is: 16,677.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,672.07 : 42,974.98 = 11,127.02 : x
  2. Step 2: Convert to fraction form
    28,672.07/42,974.98 = 11,127.02/x
  3. Step 3: Cross multiply
    28,672.07x = 42,974.98 × 11,127.02
  4. Step 4: Simplify right side
    28,672.07x = 478,183,219.27
  5. Step 5: Solve for x
    x = 478,183,219.27/28,672.07
  6. Step 6: Final answer
    x = 16,677.67

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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.