Home / 28,858.32-43,173.60-21,858.52

Finding the Fourth Proportional to 28,858.32, 43,173.60 and 21,858.52

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Solution

The fourth proportional to 28,858.32, 43,173.60 and 21,858.52 is: 32,701.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,858.32 : 43,173.60 = 21,858.52 : x
  2. Step 2: Convert to fraction form
    28,858.32/43,173.60 = 21,858.52/x
  3. Step 3: Cross multiply
    28,858.32x = 43,173.60 × 21,858.52
  4. Step 4: Simplify right side
    28,858.32x = 943,710,999.07
  5. Step 5: Solve for x
    x = 943,710,999.07/28,858.32
  6. Step 6: Final answer
    x = 32,701.52

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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.