Home / 39,928.64-55,099.16-22,023.68

Finding the Fourth Proportional to 39,928.64, 55,099.16 and 22,023.68

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Solution

The fourth proportional to 39,928.64, 55,099.16 and 22,023.68 is: 30,391.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,928.64 : 55,099.16 = 22,023.68 : x
  2. Step 2: Convert to fraction form
    39,928.64/55,099.16 = 22,023.68/x
  3. Step 3: Cross multiply
    39,928.64x = 55,099.16 × 22,023.68
  4. Step 4: Simplify right side
    39,928.64x = 1,213,486,268.11
  5. Step 5: Solve for x
    x = 1,213,486,268.11/39,928.64
  6. Step 6: Final answer
    x = 30,391.37

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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.