Home / 28,758.30-43,122.84-13,162.56

Finding the Fourth Proportional to 28,758.30, 43,122.84 and 13,162.56

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Solution

The fourth proportional to 28,758.30, 43,122.84 and 13,162.56 is: 19,737.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,758.30 : 43,122.84 = 13,162.56 : x
  2. Step 2: Convert to fraction form
    28,758.30/43,122.84 = 13,162.56/x
  3. Step 3: Cross multiply
    28,758.30x = 43,122.84 × 13,162.56
  4. Step 4: Simplify right side
    28,758.30x = 567,606,968.87
  5. Step 5: Solve for x
    x = 567,606,968.87/28,758.30
  6. Step 6: Final answer
    x = 19,737.15

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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.