Home / 21,555.10-32,310.48-11,673.51

Finding the Fourth Proportional to 21,555.10, 32,310.48 and 11,673.51

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Solution

The fourth proportional to 21,555.10, 32,310.48 and 11,673.51 is: 17,498.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,555.10 : 32,310.48 = 11,673.51 : x
  2. Step 2: Convert to fraction form
    21,555.10/32,310.48 = 11,673.51/x
  3. Step 3: Cross multiply
    21,555.10x = 32,310.48 × 11,673.51
  4. Step 4: Simplify right side
    21,555.10x = 377,176,711.38
  5. Step 5: Solve for x
    x = 377,176,711.38/21,555.10
  6. Step 6: Final answer
    x = 17,498.26

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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.