Home / 30,256.65-45,366.45-12,481.81

Finding the Fourth Proportional to 30,256.65, 45,366.45 and 12,481.81

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Solution

The fourth proportional to 30,256.65, 45,366.45 and 12,481.81 is: 18,715.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,256.65 : 45,366.45 = 12,481.81 : x
  2. Step 2: Convert to fraction form
    30,256.65/45,366.45 = 12,481.81/x
  3. Step 3: Cross multiply
    30,256.65x = 45,366.45 × 12,481.81
  4. Step 4: Simplify right side
    30,256.65x = 566,255,249.05
  5. Step 5: Solve for x
    x = 566,255,249.05/30,256.65
  6. Step 6: Final answer
    x = 18,715.07

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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.