Home / 30,729.83-42,405.35-17,300.54

Finding the Fourth Proportional to 30,729.83, 42,405.35 and 17,300.54

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Solution

The fourth proportional to 30,729.83, 42,405.35 and 17,300.54 is: 23,873.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,729.83 : 42,405.35 = 17,300.54 : x
  2. Step 2: Convert to fraction form
    30,729.83/42,405.35 = 17,300.54/x
  3. Step 3: Cross multiply
    30,729.83x = 42,405.35 × 17,300.54
  4. Step 4: Simplify right side
    30,729.83x = 733,635,473.40
  5. Step 5: Solve for x
    x = 733,635,473.40/30,729.83
  6. Step 6: Final answer
    x = 23,873.73

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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.