Home / 21,250.11-29,274.39-14,864.79

Finding the Fourth Proportional to 21,250.11, 29,274.39 and 14,864.79

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Solution

The fourth proportional to 21,250.11, 29,274.39 and 14,864.79 is: 20,477.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250.11 : 29,274.39 = 14,864.79 : x
  2. Step 2: Convert to fraction form
    21,250.11/29,274.39 = 14,864.79/x
  3. Step 3: Cross multiply
    21,250.11x = 29,274.39 × 14,864.79
  4. Step 4: Simplify right side
    21,250.11x = 435,157,659.73
  5. Step 5: Solve for x
    x = 435,157,659.73/21,250.11
  6. Step 6: Final answer
    x = 20,477.90

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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.