Home / 28,885.80-43,319.84-12,245.52

Finding the Fourth Proportional to 28,885.80, 43,319.84 and 12,245.52

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Solution

The fourth proportional to 28,885.80, 43,319.84 and 12,245.52 is: 18,364.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,885.80 : 43,319.84 = 12,245.52 : x
  2. Step 2: Convert to fraction form
    28,885.80/43,319.84 = 12,245.52/x
  3. Step 3: Cross multiply
    28,885.80x = 43,319.84 × 12,245.52
  4. Step 4: Simplify right side
    28,885.80x = 530,473,967.12
  5. Step 5: Solve for x
    x = 530,473,967.12/28,885.80
  6. Step 6: Final answer
    x = 18,364.52

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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.