Home / 20,161.40-27,798.54-16,809.08

Finding the Fourth Proportional to 20,161.40, 27,798.54 and 16,809.08

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Solution

The fourth proportional to 20,161.40, 27,798.54 and 16,809.08 is: 23,176.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.40 : 27,798.54 = 16,809.08 : x
  2. Step 2: Convert to fraction form
    20,161.40/27,798.54 = 16,809.08/x
  3. Step 3: Cross multiply
    20,161.40x = 27,798.54 × 16,809.08
  4. Step 4: Simplify right side
    20,161.40x = 467,267,882.74
  5. Step 5: Solve for x
    x = 467,267,882.74/20,161.40
  6. Step 6: Final answer
    x = 23,176.36

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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.