Home / 21,411.12-32,124.29-9,563.79

Finding the Fourth Proportional to 21,411.12, 32,124.29 and 9,563.79

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Solution

The fourth proportional to 21,411.12, 32,124.29 and 9,563.79 is: 14,349.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,411.12 : 32,124.29 = 9,563.79 : x
  2. Step 2: Convert to fraction form
    21,411.12/32,124.29 = 9,563.79/x
  3. Step 3: Cross multiply
    21,411.12x = 32,124.29 × 9,563.79
  4. Step 4: Simplify right side
    21,411.12x = 307,229,915.64
  5. Step 5: Solve for x
    x = 307,229,915.64/21,411.12
  6. Step 6: Final answer
    x = 14,349.08

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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.