Home / 28,054.47-42,072.57-9,329.48

Finding the Fourth Proportional to 28,054.47, 42,072.57 and 9,329.48

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Solution

The fourth proportional to 28,054.47, 42,072.57 and 9,329.48 is: 13,991.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,054.47 : 42,072.57 = 9,329.48 : x
  2. Step 2: Convert to fraction form
    28,054.47/42,072.57 = 9,329.48/x
  3. Step 3: Cross multiply
    28,054.47x = 42,072.57 × 9,329.48
  4. Step 4: Simplify right side
    28,054.47x = 392,514,990.00
  5. Step 5: Solve for x
    x = 392,514,990.00/28,054.47
  6. Step 6: Final answer
    x = 13,991.17

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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.