Home / 21,397.69-29,530.26-11,966.32

Finding the Fourth Proportional to 21,397.69, 29,530.26 and 11,966.32

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Solution

The fourth proportional to 21,397.69, 29,530.26 and 11,966.32 is: 16,514.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,397.69 : 29,530.26 = 11,966.32 : x
  2. Step 2: Convert to fraction form
    21,397.69/29,530.26 = 11,966.32/x
  3. Step 3: Cross multiply
    21,397.69x = 29,530.26 × 11,966.32
  4. Step 4: Simplify right side
    21,397.69x = 353,368,333.36
  5. Step 5: Solve for x
    x = 353,368,333.36/21,397.69
  6. Step 6: Final answer
    x = 16,514.33

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1.5x scale

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.