Home / 19,356.86-26,720.60-16,388.07

Finding the Fourth Proportional to 19,356.86, 26,720.60 and 16,388.07

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Solution

The fourth proportional to 19,356.86, 26,720.60 and 16,388.07 is: 22,622.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,356.86 : 26,720.60 = 16,388.07 : x
  2. Step 2: Convert to fraction form
    19,356.86/26,720.60 = 16,388.07/x
  3. Step 3: Cross multiply
    19,356.86x = 26,720.60 × 16,388.07
  4. Step 4: Simplify right side
    19,356.86x = 437,898,981.30
  5. Step 5: Solve for x
    x = 437,898,981.30/19,356.86
  6. Step 6: Final answer
    x = 22,622.42

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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.