Home / 39,239.39-54,150.08-21,334.40

Finding the Fourth Proportional to 39,239.39, 54,150.08 and 21,334.40

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Solution

The fourth proportional to 39,239.39, 54,150.08 and 21,334.40 is: 29,441.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,239.39 : 54,150.08 = 21,334.40 : x
  2. Step 2: Convert to fraction form
    39,239.39/54,150.08 = 21,334.40/x
  3. Step 3: Cross multiply
    39,239.39x = 54,150.08 × 21,334.40
  4. Step 4: Simplify right side
    39,239.39x = 1,155,259,518.55
  5. Step 5: Solve for x
    x = 1,155,259,518.55/39,239.39
  6. Step 6: Final answer
    x = 29,441.32

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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.