Home / 30,764.56-42,447.24-18,823.54

Finding the Fourth Proportional to 30,764.56, 42,447.24 and 18,823.54

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Solution

The fourth proportional to 30,764.56, 42,447.24 and 18,823.54 is: 25,971.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,764.56 : 42,447.24 = 18,823.54 : x
  2. Step 2: Convert to fraction form
    30,764.56/42,447.24 = 18,823.54/x
  3. Step 3: Cross multiply
    30,764.56x = 42,447.24 × 18,823.54
  4. Step 4: Simplify right side
    30,764.56x = 799,007,320.03
  5. Step 5: Solve for x
    x = 799,007,320.03/30,764.56
  6. Step 6: Final answer
    x = 25,971.68

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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.