Home / 28,879.34-43,317.18-12,228.98

Finding the Fourth Proportional to 28,879.34, 43,317.18 and 12,228.98

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Solution

The fourth proportional to 28,879.34, 43,317.18 and 12,228.98 is: 18,342.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,879.34 : 43,317.18 = 12,228.98 : x
  2. Step 2: Convert to fraction form
    28,879.34/43,317.18 = 12,228.98/x
  3. Step 3: Cross multiply
    28,879.34x = 43,317.18 × 12,228.98
  4. Step 4: Simplify right side
    28,879.34x = 529,724,711.29
  5. Step 5: Solve for x
    x = 529,724,711.29/28,879.34
  6. Step 6: Final answer
    x = 18,342.69

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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.