Home / 21,879.71-32,798.31-17,426.51

Finding the Fourth Proportional to 21,879.71, 32,798.31 and 17,426.51

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Solution

The fourth proportional to 21,879.71, 32,798.31 and 17,426.51 is: 26,122.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,879.71 : 32,798.31 = 17,426.51 : x
  2. Step 2: Convert to fraction form
    21,879.71/32,798.31 = 17,426.51/x
  3. Step 3: Cross multiply
    21,879.71x = 32,798.31 × 17,426.51
  4. Step 4: Simplify right side
    21,879.71x = 571,559,913.21
  5. Step 5: Solve for x
    x = 571,559,913.21/21,879.71
  6. Step 6: Final answer
    x = 26,122.83

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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.