Home / 21,484.24-32,218.64-7,440.48

Finding the Fourth Proportional to 21,484.24, 32,218.64 and 7,440.48

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Solution

The fourth proportional to 21,484.24, 32,218.64 and 7,440.48 is: 11,158.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,484.24 : 32,218.64 = 7,440.48 : x
  2. Step 2: Convert to fraction form
    21,484.24/32,218.64 = 7,440.48/x
  3. Step 3: Cross multiply
    21,484.24x = 32,218.64 × 7,440.48
  4. Step 4: Simplify right side
    21,484.24x = 239,722,206.94
  5. Step 5: Solve for x
    x = 239,722,206.94/21,484.24
  6. Step 6: Final answer
    x = 11,158.05

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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.