Home / 30,612.96-42,247.92-18,673.04

Finding the Fourth Proportional to 30,612.96, 42,247.92 and 18,673.04

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Solution

The fourth proportional to 30,612.96, 42,247.92 and 18,673.04 is: 25,770.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,612.96 : 42,247.92 = 18,673.04 : x
  2. Step 2: Convert to fraction form
    30,612.96/42,247.92 = 18,673.04/x
  3. Step 3: Cross multiply
    30,612.96x = 42,247.92 × 18,673.04
  4. Step 4: Simplify right side
    30,612.96x = 788,897,100.08
  5. Step 5: Solve for x
    x = 788,897,100.08/30,612.96
  6. Step 6: Final answer
    x = 25,770.04

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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.