Home / 57,869.08-86,803.62-18,438.28

Finding the Fourth Proportional to 57,869.08, 86,803.62 and 18,438.28

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Solution

The fourth proportional to 57,869.08, 86,803.62 and 18,438.28 is: 27,657.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,869.08 : 86,803.62 = 18,438.28 : x
  2. Step 2: Convert to fraction form
    57,869.08/86,803.62 = 18,438.28/x
  3. Step 3: Cross multiply
    57,869.08x = 86,803.62 × 18,438.28
  4. Step 4: Simplify right side
    57,869.08x = 1,600,509,450.57
  5. Step 5: Solve for x
    x = 1,600,509,450.57/57,869.08
  6. Step 6: Final answer
    x = 27,657.42

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1.5x scale

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.