Home / 39,163.95-54,046.06-21,258.81

Finding the Fourth Proportional to 39,163.95, 54,046.06 and 21,258.81

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Solution

The fourth proportional to 39,163.95, 54,046.06 and 21,258.81 is: 29,337.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,163.95 : 54,046.06 = 21,258.81 : x
  2. Step 2: Convert to fraction form
    39,163.95/54,046.06 = 21,258.81/x
  3. Step 3: Cross multiply
    39,163.95x = 54,046.06 × 21,258.81
  4. Step 4: Simplify right side
    39,163.95x = 1,148,954,867.64
  5. Step 5: Solve for x
    x = 1,148,954,867.64/39,163.95
  6. Step 6: Final answer
    x = 29,337.05

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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.