Home / 28,928.85-43,399.62-12,303.11

Finding the Fourth Proportional to 28,928.85, 43,399.62 and 12,303.11

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Solution

The fourth proportional to 28,928.85, 43,399.62 and 12,303.11 is: 18,457.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,928.85 : 43,399.62 = 12,303.11 : x
  2. Step 2: Convert to fraction form
    28,928.85/43,399.62 = 12,303.11/x
  3. Step 3: Cross multiply
    28,928.85x = 43,399.62 × 12,303.11
  4. Step 4: Simplify right side
    28,928.85x = 533,950,081.82
  5. Step 5: Solve for x
    x = 533,950,081.82/28,928.85
  6. Step 6: Final answer
    x = 18,457.36

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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.