Home / 30,236.94-45,360.88-12,457.72

Finding the Fourth Proportional to 30,236.94, 45,360.88 and 12,457.72

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Solution

The fourth proportional to 30,236.94, 45,360.88 and 12,457.72 is: 18,688.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,236.94 : 45,360.88 = 12,457.72 : x
  2. Step 2: Convert to fraction form
    30,236.94/45,360.88 = 12,457.72/x
  3. Step 3: Cross multiply
    30,236.94x = 45,360.88 × 12,457.72
  4. Step 4: Simplify right side
    30,236.94x = 565,093,141.99
  5. Step 5: Solve for x
    x = 565,093,141.99/30,236.94
  6. Step 6: Final answer
    x = 18,688.83

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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.