Home / 20,466.86-28,247.86-19,531.92

Finding the Fourth Proportional to 20,466.86, 28,247.86 and 19,531.92

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Solution

The fourth proportional to 20,466.86, 28,247.86 and 19,531.92 is: 26,957.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466.86 : 28,247.86 = 19,531.92 : x
  2. Step 2: Convert to fraction form
    20,466.86/28,247.86 = 19,531.92/x
  3. Step 3: Cross multiply
    20,466.86x = 28,247.86 × 19,531.92
  4. Step 4: Simplify right side
    20,466.86x = 551,734,941.69
  5. Step 5: Solve for x
    x = 551,734,941.69/20,466.86
  6. Step 6: Final answer
    x = 26,957.48

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1.5x scale

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.