Home / 19,995.04-27,588.36-12,919.96

Finding the Fourth Proportional to 19,995.04, 27,588.36 and 12,919.96

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Solution

The fourth proportional to 19,995.04, 27,588.36 and 12,919.96 is: 17,826.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,995.04 : 27,588.36 = 12,919.96 : x
  2. Step 2: Convert to fraction form
    19,995.04/27,588.36 = 12,919.96/x
  3. Step 3: Cross multiply
    19,995.04x = 27,588.36 × 12,919.96
  4. Step 4: Simplify right side
    19,995.04x = 356,440,507.67
  5. Step 5: Solve for x
    x = 356,440,507.67/19,995.04
  6. Step 6: Final answer
    x = 17,826.45

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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.