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Finding the Fourth Proportional to 29,903.84, 44,850.12 and 12,129.84

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Solution

The fourth proportional to 29,903.84, 44,850.12 and 12,129.84 is: 18,192.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,903.84 : 44,850.12 = 12,129.84 : x
  2. Step 2: Convert to fraction form
    29,903.84/44,850.12 = 12,129.84/x
  3. Step 3: Cross multiply
    29,903.84x = 44,850.12 × 12,129.84
  4. Step 4: Simplify right side
    29,903.84x = 544,024,779.58
  5. Step 5: Solve for x
    x = 544,024,779.58/29,903.84
  6. Step 6: Final answer
    x = 18,192.47

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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.