Home / 31,355.31-43,270.40-17,208.12

Finding the Fourth Proportional to 31,355.31, 43,270.40 and 17,208.12

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Solution

The fourth proportional to 31,355.31, 43,270.40 and 17,208.12 is: 23,747.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,355.31 : 43,270.40 = 17,208.12 : x
  2. Step 2: Convert to fraction form
    31,355.31/43,270.40 = 17,208.12/x
  3. Step 3: Cross multiply
    31,355.31x = 43,270.40 × 17,208.12
  4. Step 4: Simplify right side
    31,355.31x = 744,602,235.65
  5. Step 5: Solve for x
    x = 744,602,235.65/31,355.31
  6. Step 6: Final answer
    x = 23,747.25

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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.