Home / 30,670.97-42,313.95-17,239.15

Finding the Fourth Proportional to 30,670.97, 42,313.95 and 17,239.15

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Solution

The fourth proportional to 30,670.97, 42,313.95 and 17,239.15 is: 23,783.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,670.97 : 42,313.95 = 17,239.15 : x
  2. Step 2: Convert to fraction form
    30,670.97/42,313.95 = 17,239.15/x
  3. Step 3: Cross multiply
    30,670.97x = 42,313.95 × 17,239.15
  4. Step 4: Simplify right side
    30,670.97x = 729,456,425.36
  5. Step 5: Solve for x
    x = 729,456,425.36/30,670.97
  6. Step 6: Final answer
    x = 23,783.28

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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.