Home / 21,575.84-32,322.29-13,231.52

Finding the Fourth Proportional to 21,575.84, 32,322.29 and 13,231.52

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Solution

The fourth proportional to 21,575.84, 32,322.29 and 13,231.52 is: 19,821.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,575.84 : 32,322.29 = 13,231.52 : x
  2. Step 2: Convert to fraction form
    21,575.84/32,322.29 = 13,231.52/x
  3. Step 3: Cross multiply
    21,575.84x = 32,322.29 × 13,231.52
  4. Step 4: Simplify right side
    21,575.84x = 427,672,798.81
  5. Step 5: Solve for x
    x = 427,672,798.81/21,575.84
  6. Step 6: Final answer
    x = 19,821.84

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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.