Home / 28,775.34-43,162.92-12,961.86

Finding the Fourth Proportional to 28,775.34, 43,162.92 and 12,961.86

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Solution

The fourth proportional to 28,775.34, 43,162.92 and 12,961.86 is: 19,442.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,775.34 : 43,162.92 = 12,961.86 : x
  2. Step 2: Convert to fraction form
    28,775.34/43,162.92 = 12,961.86/x
  3. Step 3: Cross multiply
    28,775.34x = 43,162.92 × 12,961.86
  4. Step 4: Simplify right side
    28,775.34x = 559,471,726.23
  5. Step 5: Solve for x
    x = 559,471,726.23/28,775.34
  6. Step 6: Final answer
    x = 19,442.75

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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.