Home / 19,238.31-28,857.47-12,027.69

Finding the Fourth Proportional to 19,238.31, 28,857.47 and 12,027.69

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Solution

The fourth proportional to 19,238.31, 28,857.47 and 12,027.69 is: 18,041.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,238.31 : 28,857.47 = 12,027.69 : x
  2. Step 2: Convert to fraction form
    19,238.31/28,857.47 = 12,027.69/x
  3. Step 3: Cross multiply
    19,238.31x = 28,857.47 × 12,027.69
  4. Step 4: Simplify right side
    19,238.31x = 347,088,643.21
  5. Step 5: Solve for x
    x = 347,088,643.21/19,238.31
  6. Step 6: Final answer
    x = 18,041.54

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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.