Home / 19,997.52-30,011.28-7,529.84

Finding the Fourth Proportional to 19,997.52, 30,011.28 and 7,529.84

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Solution

The fourth proportional to 19,997.52, 30,011.28 and 7,529.84 is: 11,300.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,997.52 : 30,011.28 = 7,529.84 : x
  2. Step 2: Convert to fraction form
    19,997.52/30,011.28 = 7,529.84/x
  3. Step 3: Cross multiply
    19,997.52x = 30,011.28 × 7,529.84
  4. Step 4: Simplify right side
    19,997.52x = 225,980,136.60
  5. Step 5: Solve for x
    x = 225,980,136.60/19,997.52
  6. Step 6: Final answer
    x = 11,300.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.