Home / 28,870.05-43,296.45-12,229.82

Finding the Fourth Proportional to 28,870.05, 43,296.45 and 12,229.82

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Solution

The fourth proportional to 28,870.05, 43,296.45 and 12,229.82 is: 18,341.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.05 : 43,296.45 = 12,229.82 : x
  2. Step 2: Convert to fraction form
    28,870.05/43,296.45 = 12,229.82/x
  3. Step 3: Cross multiply
    28,870.05x = 43,296.45 × 12,229.82
  4. Step 4: Simplify right side
    28,870.05x = 529,507,573.66
  5. Step 5: Solve for x
    x = 529,507,573.66/28,870.05
  6. Step 6: Final answer
    x = 18,341.07

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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.