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Finding the Fourth Proportional to 69,603.84, 104,405.76 and 17,013.28

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Solution

The fourth proportional to 69,603.84, 104,405.76 and 17,013.28 is: 25,519.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,603.84 : 104,405.76 = 17,013.28 : x
  2. Step 2: Convert to fraction form
    69,603.84/104,405.76 = 17,013.28/x
  3. Step 3: Cross multiply
    69,603.84x = 104,405.76 × 17,013.28
  4. Step 4: Simplify right side
    69,603.84x = 1,776,284,428.49
  5. Step 5: Solve for x
    x = 1,776,284,428.49/69,603.84
  6. Step 6: Final answer
    x = 25,519.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.