Home / 31,308.69-43,206.09-17,161.56

Finding the Fourth Proportional to 31,308.69, 43,206.09 and 17,161.56

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Solution

The fourth proportional to 31,308.69, 43,206.09 and 17,161.56 is: 23,683.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,308.69 : 43,206.09 = 17,161.56 : x
  2. Step 2: Convert to fraction form
    31,308.69/43,206.09 = 17,161.56/x
  3. Step 3: Cross multiply
    31,308.69x = 43,206.09 × 17,161.56
  4. Step 4: Simplify right side
    31,308.69x = 741,483,905.90
  5. Step 5: Solve for x
    x = 741,483,905.90/31,308.69
  6. Step 6: Final answer
    x = 23,683.01

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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.