Home / 21,173.66-29,220.92-12,101.86

Finding the Fourth Proportional to 21,173.66, 29,220.92 and 12,101.86

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Solution

The fourth proportional to 21,173.66, 29,220.92 and 12,101.86 is: 16,701.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,173.66 : 29,220.92 = 12,101.86 : x
  2. Step 2: Convert to fraction form
    21,173.66/29,220.92 = 12,101.86/x
  3. Step 3: Cross multiply
    21,173.66x = 29,220.92 × 12,101.86
  4. Step 4: Simplify right side
    21,173.66x = 353,627,482.91
  5. Step 5: Solve for x
    x = 353,627,482.91/21,173.66
  6. Step 6: Final answer
    x = 16,701.29

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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.