Home / 28,948.24-43,443.09-12,319.95

Finding the Fourth Proportional to 28,948.24, 43,443.09 and 12,319.95

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Solution

The fourth proportional to 28,948.24, 43,443.09 and 12,319.95 is: 18,488.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,948.24 : 43,443.09 = 12,319.95 : x
  2. Step 2: Convert to fraction form
    28,948.24/43,443.09 = 12,319.95/x
  3. Step 3: Cross multiply
    28,948.24x = 43,443.09 × 12,319.95
  4. Step 4: Simplify right side
    28,948.24x = 535,216,696.65
  5. Step 5: Solve for x
    x = 535,216,696.65/28,948.24
  6. Step 6: Final answer
    x = 18,488.75

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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.