Home / 31,970.28-47,969.23-17,161.89

Finding the Fourth Proportional to 31,970.28, 47,969.23 and 17,161.89

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Solution

The fourth proportional to 31,970.28, 47,969.23 and 17,161.89 is: 25,750.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,970.28 : 47,969.23 = 17,161.89 : x
  2. Step 2: Convert to fraction form
    31,970.28/47,969.23 = 17,161.89/x
  3. Step 3: Cross multiply
    31,970.28x = 47,969.23 × 17,161.89
  4. Step 4: Simplify right side
    31,970.28x = 823,242,648.64
  5. Step 5: Solve for x
    x = 823,242,648.64/31,970.28
  6. Step 6: Final answer
    x = 25,750.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.