Home / 28,554.08-39,404.01-15,806.52

Finding the Fourth Proportional to 28,554.08, 39,404.01 and 15,806.52

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Solution

The fourth proportional to 28,554.08, 39,404.01 and 15,806.52 is: 21,812.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,554.08 : 39,404.01 = 15,806.52 : x
  2. Step 2: Convert to fraction form
    28,554.08/39,404.01 = 15,806.52/x
  3. Step 3: Cross multiply
    28,554.08x = 39,404.01 × 15,806.52
  4. Step 4: Simplify right side
    28,554.08x = 622,840,272.15
  5. Step 5: Solve for x
    x = 622,840,272.15/28,554.08
  6. Step 6: Final answer
    x = 21,812.66

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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.