Home / 21,322.64-29,424.56-11,762.52

Finding the Fourth Proportional to 21,322.64, 29,424.56 and 11,762.52

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Solution

The fourth proportional to 21,322.64, 29,424.56 and 11,762.52 is: 16,231.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,322.64 : 29,424.56 = 11,762.52 : x
  2. Step 2: Convert to fraction form
    21,322.64/29,424.56 = 11,762.52/x
  3. Step 3: Cross multiply
    21,322.64x = 29,424.56 × 11,762.52
  4. Step 4: Simplify right side
    21,322.64x = 346,106,975.49
  5. Step 5: Solve for x
    x = 346,106,975.49/21,322.64
  6. Step 6: Final answer
    x = 16,231.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.