Home / 21,852.30-32,772.06-12,490.58

Finding the Fourth Proportional to 21,852.30, 32,772.06 and 12,490.58

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Solution

The fourth proportional to 21,852.30, 32,772.06 and 12,490.58 is: 18,732.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,852.30 : 32,772.06 = 12,490.58 : x
  2. Step 2: Convert to fraction form
    21,852.30/32,772.06 = 12,490.58/x
  3. Step 3: Cross multiply
    21,852.30x = 32,772.06 × 12,490.58
  4. Step 4: Simplify right side
    21,852.30x = 409,342,037.19
  5. Step 5: Solve for x
    x = 409,342,037.19/21,852.30
  6. Step 6: Final answer
    x = 18,732.22

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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.