Home / 28,379.07-42,578.33-10,853.91

Finding the Fourth Proportional to 28,379.07, 42,578.33 and 10,853.91

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Solution

The fourth proportional to 28,379.07, 42,578.33 and 10,853.91 is: 16,284.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,379.07 : 42,578.33 = 10,853.91 : x
  2. Step 2: Convert to fraction form
    28,379.07/42,578.33 = 10,853.91/x
  3. Step 3: Cross multiply
    28,379.07x = 42,578.33 × 10,853.91
  4. Step 4: Simplify right side
    28,379.07x = 462,141,307.50
  5. Step 5: Solve for x
    x = 462,141,307.50/28,379.07
  6. Step 6: Final answer
    x = 16,284.58

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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.