Home / 28,586.31-42,870.37-26,720.54

Finding the Fourth Proportional to 28,586.31, 42,870.37 and 26,720.54

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Solution

The fourth proportional to 28,586.31, 42,870.37 and 26,720.54 is: 40,072.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,586.31 : 42,870.37 = 26,720.54 : x
  2. Step 2: Convert to fraction form
    28,586.31/42,870.37 = 26,720.54/x
  3. Step 3: Cross multiply
    28,586.31x = 42,870.37 × 26,720.54
  4. Step 4: Simplify right side
    28,586.31x = 1,145,519,436.40
  5. Step 5: Solve for x
    x = 1,145,519,436.40/28,586.31
  6. Step 6: Final answer
    x = 40,072.31

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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.