Home / 26,646.86-39,908.10-21,062.72

Finding the Fourth Proportional to 26,646.86, 39,908.10 and 21,062.72

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Solution

The fourth proportional to 26,646.86, 39,908.10 and 21,062.72 is: 31,544.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,646.86 : 39,908.10 = 21,062.72 : x
  2. Step 2: Convert to fraction form
    26,646.86/39,908.10 = 21,062.72/x
  3. Step 3: Cross multiply
    26,646.86x = 39,908.10 × 21,062.72
  4. Step 4: Simplify right side
    26,646.86x = 840,573,136.03
  5. Step 5: Solve for x
    x = 840,573,136.03/26,646.86
  6. Step 6: Final answer
    x = 31,544.92

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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.