Home / 21,666.64-32,503.28-5,872.20

Finding the Fourth Proportional to 21,666.64, 32,503.28 and 5,872.20

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Solution

The fourth proportional to 21,666.64, 32,503.28 and 5,872.20 is: 8,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,666.64 : 32,503.28 = 5,872.20 : x
  2. Step 2: Convert to fraction form
    21,666.64/32,503.28 = 5,872.20/x
  3. Step 3: Cross multiply
    21,666.64x = 32,503.28 × 5,872.20
  4. Step 4: Simplify right side
    21,666.64x = 190,865,760.82
  5. Step 5: Solve for x
    x = 190,865,760.82/21,666.64
  6. Step 6: Final answer
    x = 8,809.20

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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.