Home / 28,856.55-43,258.70-11,321.67

Finding the Fourth Proportional to 28,856.55, 43,258.70 and 11,321.67

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Solution

The fourth proportional to 28,856.55, 43,258.70 and 11,321.67 is: 16,972.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,856.55 : 43,258.70 = 11,321.67 : x
  2. Step 2: Convert to fraction form
    28,856.55/43,258.70 = 11,321.67/x
  3. Step 3: Cross multiply
    28,856.55x = 43,258.70 × 11,321.67
  4. Step 4: Simplify right side
    28,856.55x = 489,760,726.03
  5. Step 5: Solve for x
    x = 489,760,726.03/28,856.55
  6. Step 6: Final answer
    x = 16,972.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.