Home / 21,964.72-30,313.48-12,534.70

Finding the Fourth Proportional to 21,964.72, 30,313.48 and 12,534.70

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Solution

The fourth proportional to 21,964.72, 30,313.48 and 12,534.70 is: 17,299.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,964.72 : 30,313.48 = 12,534.70 : x
  2. Step 2: Convert to fraction form
    21,964.72/30,313.48 = 12,534.70/x
  3. Step 3: Cross multiply
    21,964.72x = 30,313.48 × 12,534.70
  4. Step 4: Simplify right side
    21,964.72x = 379,970,226.19
  5. Step 5: Solve for x
    x = 379,970,226.19/21,964.72
  6. Step 6: Final answer
    x = 17,299.12

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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.