Home / 19,968.56-27,356.89-19,220.84

Finding the Fourth Proportional to 19,968.56, 27,356.89 and 19,220.84

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Solution

The fourth proportional to 19,968.56, 27,356.89 and 19,220.84 is: 26,332.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,968.56 : 27,356.89 = 19,220.84 : x
  2. Step 2: Convert to fraction form
    19,968.56/27,356.89 = 19,220.84/x
  3. Step 3: Cross multiply
    19,968.56x = 27,356.89 × 19,220.84
  4. Step 4: Simplify right side
    19,968.56x = 525,822,405.59
  5. Step 5: Solve for x
    x = 525,822,405.59/19,968.56
  6. Step 6: Final answer
    x = 26,332.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.