Home / 19,858.06-27,404.20-10,783.45

Finding the Fourth Proportional to 19,858.06, 27,404.20 and 10,783.45

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Solution

The fourth proportional to 19,858.06, 27,404.20 and 10,783.45 is: 14,881.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,858.06 : 27,404.20 = 10,783.45 : x
  2. Step 2: Convert to fraction form
    19,858.06/27,404.20 = 10,783.45/x
  3. Step 3: Cross multiply
    19,858.06x = 27,404.20 × 10,783.45
  4. Step 4: Simplify right side
    19,858.06x = 295,511,820.49
  5. Step 5: Solve for x
    x = 295,511,820.49/19,858.06
  6. Step 6: Final answer
    x = 14,881.20

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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.