Home / 28,905.70-43,357.94-13,323.32

Finding the Fourth Proportional to 28,905.70, 43,357.94 and 13,323.32

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Solution

The fourth proportional to 28,905.70, 43,357.94 and 13,323.32 is: 19,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905.70 : 43,357.94 = 13,323.32 : x
  2. Step 2: Convert to fraction form
    28,905.70/43,357.94 = 13,323.32/x
  3. Step 3: Cross multiply
    28,905.70x = 43,357.94 × 13,323.32
  4. Step 4: Simplify right side
    28,905.70x = 577,671,709.16
  5. Step 5: Solve for x
    x = 577,671,709.16/28,905.70
  6. Step 6: Final answer
    x = 19,984.70

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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.