Home / 31,775.72-43,851.30-17,628.80

Finding the Fourth Proportional to 31,775.72, 43,851.30 and 17,628.80

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Solution

The fourth proportional to 31,775.72, 43,851.30 and 17,628.80 is: 24,328.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,775.72 : 43,851.30 = 17,628.80 : x
  2. Step 2: Convert to fraction form
    31,775.72/43,851.30 = 17,628.80/x
  3. Step 3: Cross multiply
    31,775.72x = 43,851.30 × 17,628.80
  4. Step 4: Simplify right side
    31,775.72x = 773,045,797.44
  5. Step 5: Solve for x
    x = 773,045,797.44/31,775.72
  6. Step 6: Final answer
    x = 24,328.19

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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.