Home / 21,464.80-32,162.64-13,239.52

Finding the Fourth Proportional to 21,464.80, 32,162.64 and 13,239.52

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Solution

The fourth proportional to 21,464.80, 32,162.64 and 13,239.52 is: 19,837.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,464.80 : 32,162.64 = 13,239.52 : x
  2. Step 2: Convert to fraction form
    21,464.80/32,162.64 = 13,239.52/x
  3. Step 3: Cross multiply
    21,464.80x = 32,162.64 × 13,239.52
  4. Step 4: Simplify right side
    21,464.80x = 425,817,915.53
  5. Step 5: Solve for x
    x = 425,817,915.53/21,464.80
  6. Step 6: Final answer
    x = 19,837.96

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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.