Home / 26,658.86-39,926.10-21,074.72

Finding the Fourth Proportional to 26,658.86, 39,926.10 and 21,074.72

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Solution

The fourth proportional to 26,658.86, 39,926.10 and 21,074.72 is: 31,562.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,658.86 : 39,926.10 = 21,074.72 : x
  2. Step 2: Convert to fraction form
    26,658.86/39,926.10 = 21,074.72/x
  3. Step 3: Cross multiply
    26,658.86x = 39,926.10 × 21,074.72
  4. Step 4: Simplify right side
    26,658.86x = 841,431,378.19
  5. Step 5: Solve for x
    x = 841,431,378.19/26,658.86
  6. Step 6: Final answer
    x = 31,562.92

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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.