Home / 19,870.20-27,420.42-10,795.44

Finding the Fourth Proportional to 19,870.20, 27,420.42 and 10,795.44

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Solution

The fourth proportional to 19,870.20, 27,420.42 and 10,795.44 is: 14,897.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,870.20 : 27,420.42 = 10,795.44 : x
  2. Step 2: Convert to fraction form
    19,870.20/27,420.42 = 10,795.44/x
  3. Step 3: Cross multiply
    19,870.20x = 27,420.42 × 10,795.44
  4. Step 4: Simplify right side
    19,870.20x = 296,015,498.88
  5. Step 5: Solve for x
    x = 296,015,498.88/19,870.20
  6. Step 6: Final answer
    x = 14,897.46

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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.