Home / 21,435.48-32,154.66-8,956.44

Finding the Fourth Proportional to 21,435.48, 32,154.66 and 8,956.44

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Solution

The fourth proportional to 21,435.48, 32,154.66 and 8,956.44 is: 13,435.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,435.48 : 32,154.66 = 8,956.44 : x
  2. Step 2: Convert to fraction form
    21,435.48/32,154.66 = 8,956.44/x
  3. Step 3: Cross multiply
    21,435.48x = 32,154.66 × 8,956.44
  4. Step 4: Simplify right side
    21,435.48x = 287,991,283.01
  5. Step 5: Solve for x
    x = 287,991,283.01/21,435.48
  6. Step 6: Final answer
    x = 13,435.26

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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.