Home / 19,008.20-28,533.90-11,221.40

Finding the Fourth Proportional to 19,008.20, 28,533.90 and 11,221.40

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Solution

The fourth proportional to 19,008.20, 28,533.90 and 11,221.40 is: 16,844.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008.20 : 28,533.90 = 11,221.40 : x
  2. Step 2: Convert to fraction form
    19,008.20/28,533.90 = 11,221.40/x
  3. Step 3: Cross multiply
    19,008.20x = 28,533.90 × 11,221.40
  4. Step 4: Simplify right side
    19,008.20x = 320,190,305.46
  5. Step 5: Solve for x
    x = 320,190,305.46/19,008.20
  6. Step 6: Final answer
    x = 16,844.85

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1.5x scale

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.