Home / 31,289.72-43,168.80-17,851.28

Finding the Fourth Proportional to 31,289.72, 43,168.80 and 17,851.28

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Solution

The fourth proportional to 31,289.72, 43,168.80 and 17,851.28 is: 24,628.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,289.72 : 43,168.80 = 17,851.28 : x
  2. Step 2: Convert to fraction form
    31,289.72/43,168.80 = 17,851.28/x
  3. Step 3: Cross multiply
    31,289.72x = 43,168.80 × 17,851.28
  4. Step 4: Simplify right side
    31,289.72x = 770,618,336.06
  5. Step 5: Solve for x
    x = 770,618,336.06/31,289.72
  6. Step 6: Final answer
    x = 24,628.48

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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.