Home / 21,425.84-32,133.51-8,945.96

Finding the Fourth Proportional to 21,425.84, 32,133.51 and 8,945.96

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Solution

The fourth proportional to 21,425.84, 32,133.51 and 8,945.96 is: 13,416.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425.84 : 32,133.51 = 8,945.96 : x
  2. Step 2: Convert to fraction form
    21,425.84/32,133.51 = 8,945.96/x
  3. Step 3: Cross multiply
    21,425.84x = 32,133.51 × 8,945.96
  4. Step 4: Simplify right side
    21,425.84x = 287,464,934.45
  5. Step 5: Solve for x
    x = 287,464,934.45/21,425.84
  6. Step 6: Final answer
    x = 13,416.74

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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.