Home / 21,292.44-29,384.12-11,861.16

Finding the Fourth Proportional to 21,292.44, 29,384.12 and 11,861.16

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Solution

The fourth proportional to 21,292.44, 29,384.12 and 11,861.16 is: 16,368.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,292.44 : 29,384.12 = 11,861.16 : x
  2. Step 2: Convert to fraction form
    21,292.44/29,384.12 = 11,861.16/x
  3. Step 3: Cross multiply
    21,292.44x = 29,384.12 × 11,861.16
  4. Step 4: Simplify right side
    21,292.44x = 348,529,748.78
  5. Step 5: Solve for x
    x = 348,529,748.78/21,292.44
  6. Step 6: Final answer
    x = 16,368.71

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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.