Home / 21,256.40-29,333.16-11,824.88

Finding the Fourth Proportional to 21,256.40, 29,333.16 and 11,824.88

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Solution

The fourth proportional to 21,256.40, 29,333.16 and 11,824.88 is: 16,317.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,256.40 : 29,333.16 = 11,824.88 : x
  2. Step 2: Convert to fraction form
    21,256.40/29,333.16 = 11,824.88/x
  3. Step 3: Cross multiply
    21,256.40x = 29,333.16 × 11,824.88
  4. Step 4: Simplify right side
    21,256.40x = 346,861,097.02
  5. Step 5: Solve for x
    x = 346,861,097.02/21,256.40
  6. Step 6: Final answer
    x = 16,317.96

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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.