Home / 21,602.88-32,371.92-16,665.12

Finding the Fourth Proportional to 21,602.88, 32,371.92 and 16,665.12

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Solution

The fourth proportional to 21,602.88, 32,371.92 and 16,665.12 is: 24,972.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,602.88 : 32,371.92 = 16,665.12 : x
  2. Step 2: Convert to fraction form
    21,602.88/32,371.92 = 16,665.12/x
  3. Step 3: Cross multiply
    21,602.88x = 32,371.92 × 16,665.12
  4. Step 4: Simplify right side
    21,602.88x = 539,481,931.43
  5. Step 5: Solve for x
    x = 539,481,931.43/21,602.88
  6. Step 6: Final answer
    x = 24,972.69

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1.5x scale

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.