Home / 21,240.06-29,311.32-11,808.63

Finding the Fourth Proportional to 21,240.06, 29,311.32 and 11,808.63

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Solution

The fourth proportional to 21,240.06, 29,311.32 and 11,808.63 is: 16,295.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,240.06 : 29,311.32 = 11,808.63 : x
  2. Step 2: Convert to fraction form
    21,240.06/29,311.32 = 11,808.63/x
  3. Step 3: Cross multiply
    21,240.06x = 29,311.32 × 11,808.63
  4. Step 4: Simplify right side
    21,240.06x = 346,126,532.69
  5. Step 5: Solve for x
    x = 346,126,532.69/21,240.06
  6. Step 6: Final answer
    x = 16,295.93

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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.