Home / 28,906.95-39,829.35-19,459.11

Finding the Fourth Proportional to 28,906.95, 39,829.35 and 19,459.11

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Solution

The fourth proportional to 28,906.95, 39,829.35 and 19,459.11 is: 26,811.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,906.95 : 39,829.35 = 19,459.11 : x
  2. Step 2: Convert to fraction form
    28,906.95/39,829.35 = 19,459.11/x
  3. Step 3: Cross multiply
    28,906.95x = 39,829.35 × 19,459.11
  4. Step 4: Simplify right side
    28,906.95x = 775,043,702.88
  5. Step 5: Solve for x
    x = 775,043,702.88/28,906.95
  6. Step 6: Final answer
    x = 26,811.67

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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.