Home / 21,354.56-32,038.16-8,872.48

Finding the Fourth Proportional to 21,354.56, 32,038.16 and 8,872.48

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Solution

The fourth proportional to 21,354.56, 32,038.16 and 8,872.48 is: 13,311.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,354.56 : 32,038.16 = 8,872.48 : x
  2. Step 2: Convert to fraction form
    21,354.56/32,038.16 = 8,872.48/x
  3. Step 3: Cross multiply
    21,354.56x = 32,038.16 × 8,872.48
  4. Step 4: Simplify right side
    21,354.56x = 284,257,933.84
  5. Step 5: Solve for x
    x = 284,257,933.84/21,354.56
  6. Step 6: Final answer
    x = 13,311.35

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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.