Home / 21,360.44-31,996-17,177.82

Finding the Fourth Proportional to 21,360.44, 31,996 and 17,177.82

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Solution

The fourth proportional to 21,360.44, 31,996 and 17,177.82 is: 25,730.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,360.44 : 31,996 = 17,177.82 : x
  2. Step 2: Convert to fraction form
    21,360.44/31,996 = 17,177.82/x
  3. Step 3: Cross multiply
    21,360.44x = 31,996 × 17,177.82
  4. Step 4: Simplify right side
    21,360.44x = 549,621,528.72
  5. Step 5: Solve for x
    x = 549,621,528.72/21,360.44
  6. Step 6: Final answer
    x = 25,730.81

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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.