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Finding the Fourth Proportional to 46,950.87, 70,444.31 and 18,879

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Solution

The fourth proportional to 46,950.87, 70,444.31 and 18,879 is: 28,325.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,950.87 : 70,444.31 = 18,879 : x
  2. Step 2: Convert to fraction form
    46,950.87/70,444.31 = 18,879/x
  3. Step 3: Cross multiply
    46,950.87x = 70,444.31 × 18,879
  4. Step 4: Simplify right side
    46,950.87x = 1,329,918,034.10
  5. Step 5: Solve for x
    x = 1,329,918,034.10/46,950.87
  6. Step 6: Final answer
    x = 28,325.74

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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.