Home / 31,985.51-44,142.16-18,556.76

Finding the Fourth Proportional to 31,985.51, 44,142.16 and 18,556.76

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Solution

The fourth proportional to 31,985.51, 44,142.16 and 18,556.76 is: 25,609.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,985.51 : 44,142.16 = 18,556.76 : x
  2. Step 2: Convert to fraction form
    31,985.51/44,142.16 = 18,556.76/x
  3. Step 3: Cross multiply
    31,985.51x = 44,142.16 × 18,556.76
  4. Step 4: Simplify right side
    31,985.51x = 819,135,532.97
  5. Step 5: Solve for x
    x = 819,135,532.97/31,985.51
  6. Step 6: Final answer
    x = 25,609.59

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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.