Home / 19,250.08-28,816.24-12,663.20

Finding the Fourth Proportional to 19,250.08, 28,816.24 and 12,663.20

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Solution

The fourth proportional to 19,250.08, 28,816.24 and 12,663.20 is: 18,956.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,250.08 : 28,816.24 = 12,663.20 : x
  2. Step 2: Convert to fraction form
    19,250.08/28,816.24 = 12,663.20/x
  3. Step 3: Cross multiply
    19,250.08x = 28,816.24 × 12,663.20
  4. Step 4: Simplify right side
    19,250.08x = 364,905,810.37
  5. Step 5: Solve for x
    x = 364,905,810.37/19,250.08
  6. Step 6: Final answer
    x = 18,956.07

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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.