Home / 14,428.31-21,640.85-4,040.87

Finding the Fourth Proportional to 14,428.31, 21,640.85 and 4,040.87

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Solution

The fourth proportional to 14,428.31, 21,640.85 and 4,040.87 is: 6,060.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,428.31 : 21,640.85 = 4,040.87 : x
  2. Step 2: Convert to fraction form
    14,428.31/21,640.85 = 4,040.87/x
  3. Step 3: Cross multiply
    14,428.31x = 21,640.85 × 4,040.87
  4. Step 4: Simplify right side
    14,428.31x = 87,447,841.34
  5. Step 5: Solve for x
    x = 87,447,841.34/14,428.31
  6. Step 6: Final answer
    x = 6,060.85

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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.