Home / 28,866.90-43,256.52-21,436.50

Finding the Fourth Proportional to 28,866.90, 43,256.52 and 21,436.50

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Solution

The fourth proportional to 28,866.90, 43,256.52 and 21,436.50 is: 32,122.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,866.90 : 43,256.52 = 21,436.50 : x
  2. Step 2: Convert to fraction form
    28,866.90/43,256.52 = 21,436.50/x
  3. Step 3: Cross multiply
    28,866.90x = 43,256.52 × 21,436.50
  4. Step 4: Simplify right side
    28,866.90x = 927,268,390.98
  5. Step 5: Solve for x
    x = 927,268,390.98/28,866.90
  6. Step 6: Final answer
    x = 32,122.20

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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.