Home / 31,338.12-47,021.22-17,111.28

Finding the Fourth Proportional to 31,338.12, 47,021.22 and 17,111.28

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Solution

The fourth proportional to 31,338.12, 47,021.22 and 17,111.28 is: 25,674.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,338.12 : 47,021.22 = 17,111.28 : x
  2. Step 2: Convert to fraction form
    31,338.12/47,021.22 = 17,111.28/x
  3. Step 3: Cross multiply
    31,338.12x = 47,021.22 × 17,111.28
  4. Step 4: Simplify right side
    31,338.12x = 804,593,261.36
  5. Step 5: Solve for x
    x = 804,593,261.36/31,338.12
  6. Step 6: Final answer
    x = 25,674.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.