Home / 21,928.23-30,260.95-11,856.67

Finding the Fourth Proportional to 21,928.23, 30,260.95 and 11,856.67

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Solution

The fourth proportional to 21,928.23, 30,260.95 and 11,856.67 is: 16,362.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,928.23 : 30,260.95 = 11,856.67 : x
  2. Step 2: Convert to fraction form
    21,928.23/30,260.95 = 11,856.67/x
  3. Step 3: Cross multiply
    21,928.23x = 30,260.95 × 11,856.67
  4. Step 4: Simplify right side
    21,928.23x = 358,794,098.04
  5. Step 5: Solve for x
    x = 358,794,098.04/21,928.23
  6. Step 6: Final answer
    x = 16,362.20

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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.