Home / 30,724.76-42,403.36-18,796.04

Finding the Fourth Proportional to 30,724.76, 42,403.36 and 18,796.04

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Solution

The fourth proportional to 30,724.76, 42,403.36 and 18,796.04 is: 25,940.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,724.76 : 42,403.36 = 18,796.04 : x
  2. Step 2: Convert to fraction form
    30,724.76/42,403.36 = 18,796.04/x
  3. Step 3: Cross multiply
    30,724.76x = 42,403.36 × 18,796.04
  4. Step 4: Simplify right side
    30,724.76x = 797,015,250.69
  5. Step 5: Solve for x
    x = 797,015,250.69/30,724.76
  6. Step 6: Final answer
    x = 25,940.49

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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.