Home / 28,856.87-43,289.84-12,216.99

Finding the Fourth Proportional to 28,856.87, 43,289.84 and 12,216.99

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Solution

The fourth proportional to 28,856.87, 43,289.84 and 12,216.99 is: 18,327.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,856.87 : 43,289.84 = 12,216.99 : x
  2. Step 2: Convert to fraction form
    28,856.87/43,289.84 = 12,216.99/x
  3. Step 3: Cross multiply
    28,856.87x = 43,289.84 × 12,216.99
  4. Step 4: Simplify right side
    28,856.87x = 528,871,572.92
  5. Step 5: Solve for x
    x = 528,871,572.92/28,856.87
  6. Step 6: Final answer
    x = 18,327.41

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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.