Home / 21,455.88-32,219.43-14,480.76

Finding the Fourth Proportional to 21,455.88, 32,219.43 and 14,480.76

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Solution

The fourth proportional to 21,455.88, 32,219.43 and 14,480.76 is: 21,745.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,455.88 : 32,219.43 = 14,480.76 : x
  2. Step 2: Convert to fraction form
    21,455.88/32,219.43 = 14,480.76/x
  3. Step 3: Cross multiply
    21,455.88x = 32,219.43 × 14,480.76
  4. Step 4: Simplify right side
    21,455.88x = 466,561,833.17
  5. Step 5: Solve for x
    x = 466,561,833.17/21,455.88
  6. Step 6: Final answer
    x = 21,745.17

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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.