Home / 28,458-42,690.41-8,733.98

Finding the Fourth Proportional to 28,458, 42,690.41 and 8,733.98

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Solution

The fourth proportional to 28,458, 42,690.41 and 8,733.98 is: 13,102.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,458 : 42,690.41 = 8,733.98 : x
  2. Step 2: Convert to fraction form
    28,458/42,690.41 = 8,733.98/x
  3. Step 3: Cross multiply
    28,458x = 42,690.41 × 8,733.98
  4. Step 4: Simplify right side
    28,458x = 372,856,930.01
  5. Step 5: Solve for x
    x = 372,856,930.01/28,458
  6. Step 6: Final answer
    x = 13,102.01

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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.