Home / 21,475.52-32,178.65-11,619.44

Finding the Fourth Proportional to 21,475.52, 32,178.65 and 11,619.44

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Solution

The fourth proportional to 21,475.52, 32,178.65 and 11,619.44 is: 17,410.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,475.52 : 32,178.65 = 11,619.44 : x
  2. Step 2: Convert to fraction form
    21,475.52/32,178.65 = 11,619.44/x
  3. Step 3: Cross multiply
    21,475.52x = 32,178.65 × 11,619.44
  4. Step 4: Simplify right side
    21,475.52x = 373,897,783.46
  5. Step 5: Solve for x
    x = 373,897,783.46/21,475.52
  6. Step 6: Final answer
    x = 17,410.42

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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.