Home / 31,412.40-43,348.37-17,071.89

Finding the Fourth Proportional to 31,412.40, 43,348.37 and 17,071.89

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Solution

The fourth proportional to 31,412.40, 43,348.37 and 17,071.89 is: 23,558.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,412.40 : 43,348.37 = 17,071.89 : x
  2. Step 2: Convert to fraction form
    31,412.40/43,348.37 = 17,071.89/x
  3. Step 3: Cross multiply
    31,412.40x = 43,348.37 × 17,071.89
  4. Step 4: Simplify right side
    31,412.40x = 740,038,647.00
  5. Step 5: Solve for x
    x = 740,038,647.00/31,412.40
  6. Step 6: Final answer
    x = 23,558.81

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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.