Home / 31,783.02-43,850.43-18,352.50

Finding the Fourth Proportional to 31,783.02, 43,850.43 and 18,352.50

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Solution

The fourth proportional to 31,783.02, 43,850.43 and 18,352.50 is: 25,320.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,783.02 : 43,850.43 = 18,352.50 : x
  2. Step 2: Convert to fraction form
    31,783.02/43,850.43 = 18,352.50/x
  3. Step 3: Cross multiply
    31,783.02x = 43,850.43 × 18,352.50
  4. Step 4: Simplify right side
    31,783.02x = 804,765,016.58
  5. Step 5: Solve for x
    x = 804,765,016.58/31,783.02
  6. Step 6: Final answer
    x = 25,320.60

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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.