Home / 30,305.79-45,465.57-9,247.71

Finding the Fourth Proportional to 30,305.79, 45,465.57 and 9,247.71

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Solution

The fourth proportional to 30,305.79, 45,465.57 and 9,247.71 is: 13,873.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,305.79 : 45,465.57 = 9,247.71 : x
  2. Step 2: Convert to fraction form
    30,305.79/45,465.57 = 9,247.71/x
  3. Step 3: Cross multiply
    30,305.79x = 45,465.57 × 9,247.71
  4. Step 4: Simplify right side
    30,305.79x = 420,452,576.84
  5. Step 5: Solve for x
    x = 420,452,576.84/30,305.79
  6. Step 6: Final answer
    x = 13,873.67

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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.