Home / 21,751.32-30,031.26-16,706.52

Finding the Fourth Proportional to 21,751.32, 30,031.26 and 16,706.52

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Solution

The fourth proportional to 21,751.32, 30,031.26 and 16,706.52 is: 23,066.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,751.32 : 30,031.26 = 16,706.52 : x
  2. Step 2: Convert to fraction form
    21,751.32/30,031.26 = 16,706.52/x
  3. Step 3: Cross multiply
    21,751.32x = 30,031.26 × 16,706.52
  4. Step 4: Simplify right side
    21,751.32x = 501,717,845.82
  5. Step 5: Solve for x
    x = 501,717,845.82/21,751.32
  6. Step 6: Final answer
    x = 23,066.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.