Home / 28,857.59-43,290.94-12,217.72

Finding the Fourth Proportional to 28,857.59, 43,290.94 and 12,217.72

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Solution

The fourth proportional to 28,857.59, 43,290.94 and 12,217.72 is: 18,328.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,857.59 : 43,290.94 = 12,217.72 : x
  2. Step 2: Convert to fraction form
    28,857.59/43,290.94 = 12,217.72/x
  3. Step 3: Cross multiply
    28,857.59x = 43,290.94 × 12,217.72
  4. Step 4: Simplify right side
    28,857.59x = 528,916,583.46
  5. Step 5: Solve for x
    x = 528,916,583.46/28,857.59
  6. Step 6: Final answer
    x = 18,328.51

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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.