Home / 26,656.86-39,923.10-21,072.72

Finding the Fourth Proportional to 26,656.86, 39,923.10 and 21,072.72

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Solution

The fourth proportional to 26,656.86, 39,923.10 and 21,072.72 is: 31,559.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,656.86 : 39,923.10 = 21,072.72 : x
  2. Step 2: Convert to fraction form
    26,656.86/39,923.10 = 21,072.72/x
  3. Step 3: Cross multiply
    26,656.86x = 39,923.10 × 21,072.72
  4. Step 4: Simplify right side
    26,656.86x = 841,288,307.83
  5. Step 5: Solve for x
    x = 841,288,307.83/26,656.86
  6. Step 6: Final answer
    x = 31,559.92

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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.