Home / 28,928.46-43,398.50-12,288.36

Finding the Fourth Proportional to 28,928.46, 43,398.50 and 12,288.36

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Solution

The fourth proportional to 28,928.46, 43,398.50 and 12,288.36 is: 18,435.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,928.46 : 43,398.50 = 12,288.36 : x
  2. Step 2: Convert to fraction form
    28,928.46/43,398.50 = 12,288.36/x
  3. Step 3: Cross multiply
    28,928.46x = 43,398.50 × 12,288.36
  4. Step 4: Simplify right side
    28,928.46x = 533,296,330.02
  5. Step 5: Solve for x
    x = 533,296,330.02/28,928.46
  6. Step 6: Final answer
    x = 18,435.01

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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.