Home / 23,199.48-31,977.90-18,155.58

Finding the Fourth Proportional to 23,199.48, 31,977.90 and 18,155.58

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Solution

The fourth proportional to 23,199.48, 31,977.90 and 18,155.58 is: 25,025.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,199.48 : 31,977.90 = 18,155.58 : x
  2. Step 2: Convert to fraction form
    23,199.48/31,977.90 = 18,155.58/x
  3. Step 3: Cross multiply
    23,199.48x = 31,977.90 × 18,155.58
  4. Step 4: Simplify right side
    23,199.48x = 580,577,321.68
  5. Step 5: Solve for x
    x = 580,577,321.68/23,199.48
  6. Step 6: Final answer
    x = 25,025.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.