Home / 31,120.44-42,945.48-16,973.40

Finding the Fourth Proportional to 31,120.44, 42,945.48 and 16,973.40

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Solution

The fourth proportional to 31,120.44, 42,945.48 and 16,973.40 is: 23,422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,120.44 : 42,945.48 = 16,973.40 : x
  2. Step 2: Convert to fraction form
    31,120.44/42,945.48 = 16,973.40/x
  3. Step 3: Cross multiply
    31,120.44x = 42,945.48 × 16,973.40
  4. Step 4: Simplify right side
    31,120.44x = 728,930,810.23
  5. Step 5: Solve for x
    x = 728,930,810.23/31,120.44
  6. Step 6: Final answer
    x = 23,422.90

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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.