Home / 39,907.89-59,775.98-18,816.30

Finding the Fourth Proportional to 39,907.89, 59,775.98 and 18,816.30

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Solution

The fourth proportional to 39,907.89, 59,775.98 and 18,816.30 is: 28,183.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,907.89 : 59,775.98 = 18,816.30 : x
  2. Step 2: Convert to fraction form
    39,907.89/59,775.98 = 18,816.30/x
  3. Step 3: Cross multiply
    39,907.89x = 59,775.98 × 18,816.30
  4. Step 4: Simplify right side
    39,907.89x = 1,124,762,678.39
  5. Step 5: Solve for x
    x = 1,124,762,678.39/39,907.89
  6. Step 6: Final answer
    x = 28,183.97

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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.