Home / 21,453.76-32,165.28-9,760.96

Finding the Fourth Proportional to 21,453.76, 32,165.28 and 9,760.96

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Solution

The fourth proportional to 21,453.76, 32,165.28 and 9,760.96 is: 14,634.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,453.76 : 32,165.28 = 9,760.96 : x
  2. Step 2: Convert to fraction form
    21,453.76/32,165.28 = 9,760.96/x
  3. Step 3: Cross multiply
    21,453.76x = 32,165.28 × 9,760.96
  4. Step 4: Simplify right side
    21,453.76x = 313,964,011.47
  5. Step 5: Solve for x
    x = 313,964,011.47/21,453.76
  6. Step 6: Final answer
    x = 14,634.45

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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.