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Finding the Fourth Proportional to 29,421.84, 44,132.72 and 12,779.76

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Solution

The fourth proportional to 29,421.84, 44,132.72 and 12,779.76 is: 19,169.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,421.84 : 44,132.72 = 12,779.76 : x
  2. Step 2: Convert to fraction form
    29,421.84/44,132.72 = 12,779.76/x
  3. Step 3: Cross multiply
    29,421.84x = 44,132.72 × 12,779.76
  4. Step 4: Simplify right side
    29,421.84x = 564,005,569.75
  5. Step 5: Solve for x
    x = 564,005,569.75/29,421.84
  6. Step 6: Final answer
    x = 19,169.62

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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.