Home / 30,439.28-42,007.82-17,010.86

Finding the Fourth Proportional to 30,439.28, 42,007.82 and 17,010.86

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Solution

The fourth proportional to 30,439.28, 42,007.82 and 17,010.86 is: 23,475.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,439.28 : 42,007.82 = 17,010.86 : x
  2. Step 2: Convert to fraction form
    30,439.28/42,007.82 = 17,010.86/x
  3. Step 3: Cross multiply
    30,439.28x = 42,007.82 × 17,010.86
  4. Step 4: Simplify right side
    30,439.28x = 714,589,144.93
  5. Step 5: Solve for x
    x = 714,589,144.93/30,439.28
  6. Step 6: Final answer
    x = 23,475.89

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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.