Home / 26,656.88-39,923.04-21,072.72

Finding the Fourth Proportional to 26,656.88, 39,923.04 and 21,072.72

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Solution

The fourth proportional to 26,656.88, 39,923.04 and 21,072.72 is: 31,559.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,656.88 : 39,923.04 = 21,072.72 : x
  2. Step 2: Convert to fraction form
    26,656.88/39,923.04 = 21,072.72/x
  3. Step 3: Cross multiply
    26,656.88x = 39,923.04 × 21,072.72
  4. Step 4: Simplify right side
    26,656.88x = 841,287,043.47
  5. Step 5: Solve for x
    x = 841,287,043.47/26,656.88
  6. Step 6: Final answer
    x = 31,559.85

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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.