Home / 21,619.80-29,834.75-12,059.98

Finding the Fourth Proportional to 21,619.80, 29,834.75 and 12,059.98

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Solution

The fourth proportional to 21,619.80, 29,834.75 and 12,059.98 is: 16,642.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,619.80 : 29,834.75 = 12,059.98 : x
  2. Step 2: Convert to fraction form
    21,619.80/29,834.75 = 12,059.98/x
  3. Step 3: Cross multiply
    21,619.80x = 29,834.75 × 12,059.98
  4. Step 4: Simplify right side
    21,619.80x = 359,806,443.87
  5. Step 5: Solve for x
    x = 359,806,443.87/21,619.80
  6. Step 6: Final answer
    x = 16,642.45

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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.