Home / 28,299.06-39,051.09-15,723

Finding the Fourth Proportional to 28,299.06, 39,051.09 and 15,723

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Solution

The fourth proportional to 28,299.06, 39,051.09 and 15,723 is: 21,696.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,299.06 : 39,051.09 = 15,723 : x
  2. Step 2: Convert to fraction form
    28,299.06/39,051.09 = 15,723/x
  3. Step 3: Cross multiply
    28,299.06x = 39,051.09 × 15,723
  4. Step 4: Simplify right side
    28,299.06x = 614,000,288.07
  5. Step 5: Solve for x
    x = 614,000,288.07/28,299.06
  6. Step 6: Final answer
    x = 21,696.84

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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.