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Finding the Fourth Proportional to 21,482.08, 29,644.02 and 12,051.28

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Solution

The fourth proportional to 21,482.08, 29,644.02 and 12,051.28 is: 16,630.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,482.08 : 29,644.02 = 12,051.28 : x
  2. Step 2: Convert to fraction form
    21,482.08/29,644.02 = 12,051.28/x
  3. Step 3: Cross multiply
    21,482.08x = 29,644.02 × 12,051.28
  4. Step 4: Simplify right side
    21,482.08x = 357,248,385.35
  5. Step 5: Solve for x
    x = 357,248,385.35/21,482.08
  6. Step 6: Final answer
    x = 16,630.06

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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.