Home / 22,693.37-31,319.60-13,740.64

Finding the Fourth Proportional to 22,693.37, 31,319.60 and 13,740.64

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Solution

The fourth proportional to 22,693.37, 31,319.60 and 13,740.64 is: 18,963.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,693.37 : 31,319.60 = 13,740.64 : x
  2. Step 2: Convert to fraction form
    22,693.37/31,319.60 = 13,740.64/x
  3. Step 3: Cross multiply
    22,693.37x = 31,319.60 × 13,740.64
  4. Step 4: Simplify right side
    22,693.37x = 430,351,201.54
  5. Step 5: Solve for x
    x = 430,351,201.54/22,693.37
  6. Step 6: Final answer
    x = 18,963.75

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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.