Home / 28,907.18-43,359.78-12,256.49

Finding the Fourth Proportional to 28,907.18, 43,359.78 and 12,256.49

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Solution

The fourth proportional to 28,907.18, 43,359.78 and 12,256.49 is: 18,384.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,907.18 : 43,359.78 = 12,256.49 : x
  2. Step 2: Convert to fraction form
    28,907.18/43,359.78 = 12,256.49/x
  3. Step 3: Cross multiply
    28,907.18x = 43,359.78 × 12,256.49
  4. Step 4: Simplify right side
    28,907.18x = 531,438,709.97
  5. Step 5: Solve for x
    x = 531,438,709.97/28,907.18
  6. Step 6: Final answer
    x = 18,384.32

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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.