Home / 28,975.19-43,479.10-15,647.99

Finding the Fourth Proportional to 28,975.19, 43,479.10 and 15,647.99

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Solution

The fourth proportional to 28,975.19, 43,479.10 and 15,647.99 is: 23,480.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,975.19 : 43,479.10 = 15,647.99 : x
  2. Step 2: Convert to fraction form
    28,975.19/43,479.10 = 15,647.99/x
  3. Step 3: Cross multiply
    28,975.19x = 43,479.10 × 15,647.99
  4. Step 4: Simplify right side
    28,975.19x = 680,360,269.16
  5. Step 5: Solve for x
    x = 680,360,269.16/28,975.19
  6. Step 6: Final answer
    x = 23,480.79

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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.