Home / 21,178.08-31,768.26-5,595.28

Finding the Fourth Proportional to 21,178.08, 31,768.26 and 5,595.28

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Solution

The fourth proportional to 21,178.08, 31,768.26 and 5,595.28 is: 8,393.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,178.08 : 31,768.26 = 5,595.28 : x
  2. Step 2: Convert to fraction form
    21,178.08/31,768.26 = 5,595.28/x
  3. Step 3: Cross multiply
    21,178.08x = 31,768.26 × 5,595.28
  4. Step 4: Simplify right side
    21,178.08x = 177,752,309.81
  5. Step 5: Solve for x
    x = 177,752,309.81/21,178.08
  6. Step 6: Final answer
    x = 8,393.22

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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.