Home / 31,317.42-43,218.02-17,170.22

Finding the Fourth Proportional to 31,317.42, 43,218.02 and 17,170.22

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Solution

The fourth proportional to 31,317.42, 43,218.02 and 17,170.22 is: 23,694.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,317.42 : 43,218.02 = 17,170.22 : x
  2. Step 2: Convert to fraction form
    31,317.42/43,218.02 = 17,170.22/x
  3. Step 3: Cross multiply
    31,317.42x = 43,218.02 × 17,170.22
  4. Step 4: Simplify right side
    31,317.42x = 742,062,911.36
  5. Step 5: Solve for x
    x = 742,062,911.36/31,317.42
  6. Step 6: Final answer
    x = 23,694.89

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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.