Home / 30,516.96-42,112.12-17,770.48

Finding the Fourth Proportional to 30,516.96, 42,112.12 and 17,770.48

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Solution

The fourth proportional to 30,516.96, 42,112.12 and 17,770.48 is: 24,522.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,516.96 : 42,112.12 = 17,770.48 : x
  2. Step 2: Convert to fraction form
    30,516.96/42,112.12 = 17,770.48/x
  3. Step 3: Cross multiply
    30,516.96x = 42,112.12 × 17,770.48
  4. Step 4: Simplify right side
    30,516.96x = 748,352,586.22
  5. Step 5: Solve for x
    x = 748,352,586.22/30,516.96
  6. Step 6: Final answer
    x = 24,522.51

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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.