Home / 57,429.12-86,145.30-15,876.12

Finding the Fourth Proportional to 57,429.12, 86,145.30 and 15,876.12

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Solution

The fourth proportional to 57,429.12, 86,145.30 and 15,876.12 is: 23,814.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,429.12 : 86,145.30 = 15,876.12 : x
  2. Step 2: Convert to fraction form
    57,429.12/86,145.30 = 15,876.12/x
  3. Step 3: Cross multiply
    57,429.12x = 86,145.30 × 15,876.12
  4. Step 4: Simplify right side
    57,429.12x = 1,367,653,120.24
  5. Step 5: Solve for x
    x = 1,367,653,120.24/57,429.12
  6. Step 6: Final answer
    x = 23,814.63

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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.