Home / 20,203.57-30,295.27-12,802.42

Finding the Fourth Proportional to 20,203.57, 30,295.27 and 12,802.42

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Solution

The fourth proportional to 20,203.57, 30,295.27 and 12,802.42 is: 19,197.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,203.57 : 30,295.27 = 12,802.42 : x
  2. Step 2: Convert to fraction form
    20,203.57/30,295.27 = 12,802.42/x
  3. Step 3: Cross multiply
    20,203.57x = 30,295.27 × 12,802.42
  4. Step 4: Simplify right side
    20,203.57x = 387,852,770.55
  5. Step 5: Solve for x
    x = 387,852,770.55/20,203.57
  6. Step 6: Final answer
    x = 19,197.24

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1.5x scale

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.