Home / 19,939.01-29,798.36-18,786.74

Finding the Fourth Proportional to 19,939.01, 29,798.36 and 18,786.74

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Solution

The fourth proportional to 19,939.01, 29,798.36 and 18,786.74 is: 28,076.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939.01 : 29,798.36 = 18,786.74 : x
  2. Step 2: Convert to fraction form
    19,939.01/29,798.36 = 18,786.74/x
  3. Step 3: Cross multiply
    19,939.01x = 29,798.36 × 18,786.74
  4. Step 4: Simplify right side
    19,939.01x = 559,813,953.08
  5. Step 5: Solve for x
    x = 559,813,953.08/19,939.01
  6. Step 6: Final answer
    x = 28,076.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.