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Finding the Fourth Proportional to 29,486.40, 44,180.30 and 12,821.44

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Solution

The fourth proportional to 29,486.40, 44,180.30 and 12,821.44 is: 19,210.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,486.40 : 44,180.30 = 12,821.44 : x
  2. Step 2: Convert to fraction form
    29,486.40/44,180.30 = 12,821.44/x
  3. Step 3: Cross multiply
    29,486.40x = 44,180.30 × 12,821.44
  4. Step 4: Simplify right side
    29,486.40x = 566,455,065.63
  5. Step 5: Solve for x
    x = 566,455,065.63/29,486.40
  6. Step 6: Final answer
    x = 19,210.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.