Home / 30,780.14-42,476.97-17,351.40

Finding the Fourth Proportional to 30,780.14, 42,476.97 and 17,351.40

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Solution

The fourth proportional to 30,780.14, 42,476.97 and 17,351.40 is: 23,945.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,780.14 : 42,476.97 = 17,351.40 : x
  2. Step 2: Convert to fraction form
    30,780.14/42,476.97 = 17,351.40/x
  3. Step 3: Cross multiply
    30,780.14x = 42,476.97 × 17,351.40
  4. Step 4: Simplify right side
    30,780.14x = 737,034,897.26
  5. Step 5: Solve for x
    x = 737,034,897.26/30,780.14
  6. Step 6: Final answer
    x = 23,945.14

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.