Home / 29,089.40-43,638.15-12,449.30

Finding the Fourth Proportional to 29,089.40, 43,638.15 and 12,449.30

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Solution

The fourth proportional to 29,089.40, 43,638.15 and 12,449.30 is: 18,675.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,089.40 : 43,638.15 = 12,449.30 : x
  2. Step 2: Convert to fraction form
    29,089.40/43,638.15 = 12,449.30/x
  3. Step 3: Cross multiply
    29,089.40x = 43,638.15 × 12,449.30
  4. Step 4: Simplify right side
    29,089.40x = 543,264,420.80
  5. Step 5: Solve for x
    x = 543,264,420.80/29,089.40
  6. Step 6: Final answer
    x = 18,675.68

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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.