Home / 21,133.60-29,165.30-11,702.18

Finding the Fourth Proportional to 21,133.60, 29,165.30 and 11,702.18

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Solution

The fourth proportional to 21,133.60, 29,165.30 and 11,702.18 is: 16,149.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,133.60 : 29,165.30 = 11,702.18 : x
  2. Step 2: Convert to fraction form
    21,133.60/29,165.30 = 11,702.18/x
  3. Step 3: Cross multiply
    21,133.60x = 29,165.30 × 11,702.18
  4. Step 4: Simplify right side
    21,133.60x = 341,297,590.35
  5. Step 5: Solve for x
    x = 341,297,590.35/21,133.60
  6. Step 6: Final answer
    x = 16,149.52

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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.