Home / 30,645.46-42,289.60-17,034.36

Finding the Fourth Proportional to 30,645.46, 42,289.60 and 17,034.36

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Solution

The fourth proportional to 30,645.46, 42,289.60 and 17,034.36 is: 23,506.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,645.46 : 42,289.60 = 17,034.36 : x
  2. Step 2: Convert to fraction form
    30,645.46/42,289.60 = 17,034.36/x
  3. Step 3: Cross multiply
    30,645.46x = 42,289.60 × 17,034.36
  4. Step 4: Simplify right side
    30,645.46x = 720,376,270.66
  5. Step 5: Solve for x
    x = 720,376,270.66/30,645.46
  6. Step 6: Final answer
    x = 23,506.79

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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.