Home / 19,814.04-27,342.36-11,430

Finding the Fourth Proportional to 19,814.04, 27,342.36 and 11,430

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Solution

The fourth proportional to 19,814.04, 27,342.36 and 11,430 is: 15,772.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,814.04 : 27,342.36 = 11,430 : x
  2. Step 2: Convert to fraction form
    19,814.04/27,342.36 = 11,430/x
  3. Step 3: Cross multiply
    19,814.04x = 27,342.36 × 11,430
  4. Step 4: Simplify right side
    19,814.04x = 312,523,174.80
  5. Step 5: Solve for x
    x = 312,523,174.80/19,814.04
  6. Step 6: Final answer
    x = 15,772.81

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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.