Home / 21,280.70-29,368.26-11,849.25

Finding the Fourth Proportional to 21,280.70, 29,368.26 and 11,849.25

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Solution

The fourth proportional to 21,280.70, 29,368.26 and 11,849.25 is: 16,352.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,280.70 : 29,368.26 = 11,849.25 : x
  2. Step 2: Convert to fraction form
    21,280.70/29,368.26 = 11,849.25/x
  3. Step 3: Cross multiply
    21,280.70x = 29,368.26 × 11,849.25
  4. Step 4: Simplify right side
    21,280.70x = 347,991,854.81
  5. Step 5: Solve for x
    x = 347,991,854.81/21,280.70
  6. Step 6: Final answer
    x = 16,352.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.