Home / 39,319.36-54,258.24-22,321.60

Finding the Fourth Proportional to 39,319.36, 54,258.24 and 22,321.60

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Solution

The fourth proportional to 39,319.36, 54,258.24 and 22,321.60 is: 30,802.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,319.36 : 54,258.24 = 22,321.60 : x
  2. Step 2: Convert to fraction form
    39,319.36/54,258.24 = 22,321.60/x
  3. Step 3: Cross multiply
    39,319.36x = 54,258.24 × 22,321.60
  4. Step 4: Simplify right side
    39,319.36x = 1,211,130,729.98
  5. Step 5: Solve for x
    x = 1,211,130,729.98/39,319.36
  6. Step 6: Final answer
    x = 30,802.40

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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.