Home / 28,563.82-39,422.74-19,603.96

Finding the Fourth Proportional to 28,563.82, 39,422.74 and 19,603.96

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Solution

The fourth proportional to 28,563.82, 39,422.74 and 19,603.96 is: 27,056.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,563.82 : 39,422.74 = 19,603.96 : x
  2. Step 2: Convert to fraction form
    28,563.82/39,422.74 = 19,603.96/x
  3. Step 3: Cross multiply
    28,563.82x = 39,422.74 × 19,603.96
  4. Step 4: Simplify right side
    28,563.82x = 772,841,818.05
  5. Step 5: Solve for x
    x = 772,841,818.05/28,563.82
  6. Step 6: Final answer
    x = 27,056.67

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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.