Home / 47,798.12-65,943.78-28,928.36

Finding the Fourth Proportional to 47,798.12, 65,943.78 and 28,928.36

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Solution

The fourth proportional to 47,798.12, 65,943.78 and 28,928.36 is: 39,910.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,798.12 : 65,943.78 = 28,928.36 : x
  2. Step 2: Convert to fraction form
    47,798.12/65,943.78 = 28,928.36/x
  3. Step 3: Cross multiply
    47,798.12x = 65,943.78 × 28,928.36
  4. Step 4: Simplify right side
    47,798.12x = 1,907,645,407.60
  5. Step 5: Solve for x
    x = 1,907,645,407.60/47,798.12
  6. Step 6: Final answer
    x = 39,910.47

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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.