Home / 21,364.79-32,051.24-8,878.04

Finding the Fourth Proportional to 21,364.79, 32,051.24 and 8,878.04

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Solution

The fourth proportional to 21,364.79, 32,051.24 and 8,878.04 is: 13,318.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,364.79 : 32,051.24 = 8,878.04 : x
  2. Step 2: Convert to fraction form
    21,364.79/32,051.24 = 8,878.04/x
  3. Step 3: Cross multiply
    21,364.79x = 32,051.24 × 8,878.04
  4. Step 4: Simplify right side
    21,364.79x = 284,551,986.12
  5. Step 5: Solve for x
    x = 284,551,986.12/21,364.79
  6. Step 6: Final answer
    x = 13,318.74

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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.