Home / 30,212.37-45,311.70-11,485.71

Finding the Fourth Proportional to 30,212.37, 45,311.70 and 11,485.71

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Solution

The fourth proportional to 30,212.37, 45,311.70 and 11,485.71 is: 17,225.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,212.37 : 45,311.70 = 11,485.71 : x
  2. Step 2: Convert to fraction form
    30,212.37/45,311.70 = 11,485.71/x
  3. Step 3: Cross multiply
    30,212.37x = 45,311.70 × 11,485.71
  4. Step 4: Simplify right side
    30,212.37x = 520,437,045.81
  5. Step 5: Solve for x
    x = 520,437,045.81/30,212.37
  6. Step 6: Final answer
    x = 17,225.96

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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.