Home / 19,588.32-27,021.87-12,507.30

Finding the Fourth Proportional to 19,588.32, 27,021.87 and 12,507.30

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Solution

The fourth proportional to 19,588.32, 27,021.87 and 12,507.30 is: 17,253.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,588.32 : 27,021.87 = 12,507.30 : x
  2. Step 2: Convert to fraction form
    19,588.32/27,021.87 = 12,507.30/x
  3. Step 3: Cross multiply
    19,588.32x = 27,021.87 × 12,507.30
  4. Step 4: Simplify right side
    19,588.32x = 337,970,634.65
  5. Step 5: Solve for x
    x = 337,970,634.65/19,588.32
  6. Step 6: Final answer
    x = 17,253.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.