Home / 28,369.36-42,537.43-9,643.17

Finding the Fourth Proportional to 28,369.36, 42,537.43 and 9,643.17

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Solution

The fourth proportional to 28,369.36, 42,537.43 and 9,643.17 is: 14,459.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,369.36 : 42,537.43 = 9,643.17 : x
  2. Step 2: Convert to fraction form
    28,369.36/42,537.43 = 9,643.17/x
  3. Step 3: Cross multiply
    28,369.36x = 42,537.43 × 9,643.17
  4. Step 4: Simplify right side
    28,369.36x = 410,195,668.85
  5. Step 5: Solve for x
    x = 410,195,668.85/28,369.36
  6. Step 6: Final answer
    x = 14,459.11

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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.