Home / 31,497.98-43,447.67-18,742.54

Finding the Fourth Proportional to 31,497.98, 43,447.67 and 18,742.54

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Solution

The fourth proportional to 31,497.98, 43,447.67 and 18,742.54 is: 25,853.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,497.98 : 43,447.67 = 18,742.54 : x
  2. Step 2: Convert to fraction form
    31,497.98/43,447.67 = 18,742.54/x
  3. Step 3: Cross multiply
    31,497.98x = 43,447.67 × 18,742.54
  4. Step 4: Simplify right side
    31,497.98x = 814,319,692.88
  5. Step 5: Solve for x
    x = 814,319,692.88/31,497.98
  6. Step 6: Final answer
    x = 25,853.08

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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.