Home / 30,427.44-41,930.54-21,913.50

Finding the Fourth Proportional to 30,427.44, 41,930.54 and 21,913.50

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Solution

The fourth proportional to 30,427.44, 41,930.54 and 21,913.50 is: 30,197.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,427.44 : 41,930.54 = 21,913.50 : x
  2. Step 2: Convert to fraction form
    30,427.44/41,930.54 = 21,913.50/x
  3. Step 3: Cross multiply
    30,427.44x = 41,930.54 × 21,913.50
  4. Step 4: Simplify right side
    30,427.44x = 918,845,018.14
  5. Step 5: Solve for x
    x = 918,845,018.14/30,427.44
  6. Step 6: Final answer
    x = 30,197.91

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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.