Home / 46,138.59-69,208.11-12,858.66

Finding the Fourth Proportional to 46,138.59, 69,208.11 and 12,858.66

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Solution

The fourth proportional to 46,138.59, 69,208.11 and 12,858.66 is: 19,288.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,138.59 : 69,208.11 = 12,858.66 : x
  2. Step 2: Convert to fraction form
    46,138.59/69,208.11 = 12,858.66/x
  3. Step 3: Cross multiply
    46,138.59x = 69,208.11 × 12,858.66
  4. Step 4: Simplify right side
    46,138.59x = 889,923,555.73
  5. Step 5: Solve for x
    x = 889,923,555.73/46,138.59
  6. Step 6: Final answer
    x = 19,288.05

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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.