Home / 19,972.50-27,562.05-11,140.50

Finding the Fourth Proportional to 19,972.50, 27,562.05 and 11,140.50

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Solution

The fourth proportional to 19,972.50, 27,562.05 and 11,140.50 is: 15,373.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.50 : 27,562.05 = 11,140.50 : x
  2. Step 2: Convert to fraction form
    19,972.50/27,562.05 = 11,140.50/x
  3. Step 3: Cross multiply
    19,972.50x = 27,562.05 × 11,140.50
  4. Step 4: Simplify right side
    19,972.50x = 307,055,018.03
  5. Step 5: Solve for x
    x = 307,055,018.03/19,972.50
  6. Step 6: Final answer
    x = 15,373.89

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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.