Home / 39,829.59-54,967.32-21,928.59

Finding the Fourth Proportional to 39,829.59, 54,967.32 and 21,928.59

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Solution

The fourth proportional to 39,829.59, 54,967.32 and 21,928.59 is: 30,262.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,829.59 : 54,967.32 = 21,928.59 : x
  2. Step 2: Convert to fraction form
    39,829.59/54,967.32 = 21,928.59/x
  3. Step 3: Cross multiply
    39,829.59x = 54,967.32 × 21,928.59
  4. Step 4: Simplify right side
    39,829.59x = 1,205,355,823.68
  5. Step 5: Solve for x
    x = 1,205,355,823.68/39,829.59
  6. Step 6: Final answer
    x = 30,262.82

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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.