Home / 21,471.24-29,620.11-14,304.50

Finding the Fourth Proportional to 21,471.24, 29,620.11 and 14,304.50

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Solution

The fourth proportional to 21,471.24, 29,620.11 and 14,304.50 is: 19,733.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,471.24 : 29,620.11 = 14,304.50 : x
  2. Step 2: Convert to fraction form
    21,471.24/29,620.11 = 14,304.50/x
  3. Step 3: Cross multiply
    21,471.24x = 29,620.11 × 14,304.50
  4. Step 4: Simplify right side
    21,471.24x = 423,700,715.39
  5. Step 5: Solve for x
    x = 423,700,715.39/21,471.24
  6. Step 6: Final answer
    x = 19,733.41

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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.