Home / 26,709.12-36,861.72-15,531.12

Finding the Fourth Proportional to 26,709.12, 36,861.72 and 15,531.12

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Solution

The fourth proportional to 26,709.12, 36,861.72 and 15,531.12 is: 21,434.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,709.12 : 36,861.72 = 15,531.12 : x
  2. Step 2: Convert to fraction form
    26,709.12/36,861.72 = 15,531.12/x
  3. Step 3: Cross multiply
    26,709.12x = 36,861.72 × 15,531.12
  4. Step 4: Simplify right side
    26,709.12x = 572,503,796.73
  5. Step 5: Solve for x
    x = 572,503,796.73/26,709.12
  6. Step 6: Final answer
    x = 21,434.77

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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.