Home / 21,063.51-31,587.03-10,530.27

Finding the Fourth Proportional to 21,063.51, 31,587.03 and 10,530.27

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Solution

The fourth proportional to 21,063.51, 31,587.03 and 10,530.27 is: 15,791.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063.51 : 31,587.03 = 10,530.27 : x
  2. Step 2: Convert to fraction form
    21,063.51/31,587.03 = 10,530.27/x
  3. Step 3: Cross multiply
    21,063.51x = 31,587.03 × 10,530.27
  4. Step 4: Simplify right side
    21,063.51x = 332,619,954.40
  5. Step 5: Solve for x
    x = 332,619,954.40/21,063.51
  6. Step 6: Final answer
    x = 15,791.29

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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.