Home / 19,721.16-27,208.74-14,056.80

Finding the Fourth Proportional to 19,721.16, 27,208.74 and 14,056.80

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Solution

The fourth proportional to 19,721.16, 27,208.74 and 14,056.80 is: 19,393.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721.16 : 27,208.74 = 14,056.80 : x
  2. Step 2: Convert to fraction form
    19,721.16/27,208.74 = 14,056.80/x
  3. Step 3: Cross multiply
    19,721.16x = 27,208.74 × 14,056.80
  4. Step 4: Simplify right side
    19,721.16x = 382,467,816.43
  5. Step 5: Solve for x
    x = 382,467,816.43/19,721.16
  6. Step 6: Final answer
    x = 19,393.78

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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.