Home / 19,980.24-27,572.68-11,027.76

Finding the Fourth Proportional to 19,980.24, 27,572.68 and 11,027.76

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Solution

The fourth proportional to 19,980.24, 27,572.68 and 11,027.76 is: 15,218.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,980.24 : 27,572.68 = 11,027.76 : x
  2. Step 2: Convert to fraction form
    19,980.24/27,572.68 = 11,027.76/x
  3. Step 3: Cross multiply
    19,980.24x = 27,572.68 × 11,027.76
  4. Step 4: Simplify right side
    19,980.24x = 304,064,897.60
  5. Step 5: Solve for x
    x = 304,064,897.60/19,980.24
  6. Step 6: Final answer
    x = 15,218.28

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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.