Home / 20,329.09-30,492.66-8,477.98

Finding the Fourth Proportional to 20,329.09, 30,492.66 and 8,477.98

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Solution

The fourth proportional to 20,329.09, 30,492.66 and 8,477.98 is: 12,716.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,329.09 : 30,492.66 = 8,477.98 : x
  2. Step 2: Convert to fraction form
    20,329.09/30,492.66 = 8,477.98/x
  3. Step 3: Cross multiply
    20,329.09x = 30,492.66 × 8,477.98
  4. Step 4: Simplify right side
    20,329.09x = 258,516,161.63
  5. Step 5: Solve for x
    x = 258,516,161.63/20,329.09
  6. Step 6: Final answer
    x = 12,716.56

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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.