Home / 28,070.85-42,085.20-16,975.26

Finding the Fourth Proportional to 28,070.85, 42,085.20 and 16,975.26

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Solution

The fourth proportional to 28,070.85, 42,085.20 and 16,975.26 is: 25,450.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,070.85 : 42,085.20 = 16,975.26 : x
  2. Step 2: Convert to fraction form
    28,070.85/42,085.20 = 16,975.26/x
  3. Step 3: Cross multiply
    28,070.85x = 42,085.20 × 16,975.26
  4. Step 4: Simplify right side
    28,070.85x = 714,407,212.15
  5. Step 5: Solve for x
    x = 714,407,212.15/28,070.85
  6. Step 6: Final answer
    x = 25,450.15

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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.