Home / 28,585.31-42,868.87-26,719.54

Finding the Fourth Proportional to 28,585.31, 42,868.87 and 26,719.54

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Solution

The fourth proportional to 28,585.31, 42,868.87 and 26,719.54 is: 40,070.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,585.31 : 42,868.87 = 26,719.54 : x
  2. Step 2: Convert to fraction form
    28,585.31/42,868.87 = 26,719.54/x
  3. Step 3: Cross multiply
    28,585.31x = 42,868.87 × 26,719.54
  4. Step 4: Simplify right side
    28,585.31x = 1,145,436,312.75
  5. Step 5: Solve for x
    x = 1,145,436,312.75/28,585.31
  6. Step 6: Final answer
    x = 40,070.81

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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.