Home / 21,267.15-29,349.81-11,835.91

Finding the Fourth Proportional to 21,267.15, 29,349.81 and 11,835.91

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Solution

The fourth proportional to 21,267.15, 29,349.81 and 11,835.91 is: 16,334.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,267.15 : 29,349.81 = 11,835.91 : x
  2. Step 2: Convert to fraction form
    21,267.15/29,349.81 = 11,835.91/x
  3. Step 3: Cross multiply
    21,267.15x = 29,349.81 × 11,835.91
  4. Step 4: Simplify right side
    21,267.15x = 347,381,709.68
  5. Step 5: Solve for x
    x = 347,381,709.68/21,267.15
  6. Step 6: Final answer
    x = 16,334.19

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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.