Home / 28,985.38-43,479.21-8,996.96

Finding the Fourth Proportional to 28,985.38, 43,479.21 and 8,996.96

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Solution

The fourth proportional to 28,985.38, 43,479.21 and 8,996.96 is: 13,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985.38 : 43,479.21 = 8,996.96 : x
  2. Step 2: Convert to fraction form
    28,985.38/43,479.21 = 8,996.96/x
  3. Step 3: Cross multiply
    28,985.38x = 43,479.21 × 8,996.96
  4. Step 4: Simplify right side
    28,985.38x = 391,180,775.52
  5. Step 5: Solve for x
    x = 391,180,775.52/28,985.38
  6. Step 6: Final answer
    x = 13,495.80

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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.