Home / 21,514.78-29,693.18-12,083.34

Finding the Fourth Proportional to 21,514.78, 29,693.18 and 12,083.34

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Solution

The fourth proportional to 21,514.78, 29,693.18 and 12,083.34 is: 16,676.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,514.78 : 29,693.18 = 12,083.34 : x
  2. Step 2: Convert to fraction form
    21,514.78/29,693.18 = 12,083.34/x
  3. Step 3: Cross multiply
    21,514.78x = 29,693.18 × 12,083.34
  4. Step 4: Simplify right side
    21,514.78x = 358,792,931.18
  5. Step 5: Solve for x
    x = 358,792,931.18/21,514.78
  6. Step 6: Final answer
    x = 16,676.58

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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.