Home / 28,083.51-42,201.81-14,945.31

Finding the Fourth Proportional to 28,083.51, 42,201.81 and 14,945.31

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Solution

The fourth proportional to 28,083.51, 42,201.81 and 14,945.31 is: 22,458.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083.51 : 42,201.81 = 14,945.31 : x
  2. Step 2: Convert to fraction form
    28,083.51/42,201.81 = 14,945.31/x
  3. Step 3: Cross multiply
    28,083.51x = 42,201.81 × 14,945.31
  4. Step 4: Simplify right side
    28,083.51x = 630,719,133.01
  5. Step 5: Solve for x
    x = 630,719,133.01/28,083.51
  6. Step 6: Final answer
    x = 22,458.70

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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.