Home / 21,520.03-29,687.39-14,353.25

Finding the Fourth Proportional to 21,520.03, 29,687.39 and 14,353.25

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Solution

The fourth proportional to 21,520.03, 29,687.39 and 14,353.25 is: 19,800.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,520.03 : 29,687.39 = 14,353.25 : x
  2. Step 2: Convert to fraction form
    21,520.03/29,687.39 = 14,353.25/x
  3. Step 3: Cross multiply
    21,520.03x = 29,687.39 × 14,353.25
  4. Step 4: Simplify right side
    21,520.03x = 426,110,530.52
  5. Step 5: Solve for x
    x = 426,110,530.52/21,520.03
  6. Step 6: Final answer
    x = 19,800.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.