Home / 21,550.64-32,359.98-12,824.51

Finding the Fourth Proportional to 21,550.64, 32,359.98 and 12,824.51

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Solution

The fourth proportional to 21,550.64, 32,359.98 and 12,824.51 is: 19,257.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,550.64 : 32,359.98 = 12,824.51 : x
  2. Step 2: Convert to fraction form
    21,550.64/32,359.98 = 12,824.51/x
  3. Step 3: Cross multiply
    21,550.64x = 32,359.98 × 12,824.51
  4. Step 4: Simplify right side
    21,550.64x = 415,000,887.11
  5. Step 5: Solve for x
    x = 415,000,887.11/21,550.64
  6. Step 6: Final answer
    x = 19,257.01

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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.