Home / 21,340.85-29,452.01-11,782.58

Finding the Fourth Proportional to 21,340.85, 29,452.01 and 11,782.58

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Solution

The fourth proportional to 21,340.85, 29,452.01 and 11,782.58 is: 16,260.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,340.85 : 29,452.01 = 11,782.58 : x
  2. Step 2: Convert to fraction form
    21,340.85/29,452.01 = 11,782.58/x
  3. Step 3: Cross multiply
    21,340.85x = 29,452.01 × 11,782.58
  4. Step 4: Simplify right side
    21,340.85x = 347,020,605.07
  5. Step 5: Solve for x
    x = 347,020,605.07/21,340.85
  6. Step 6: Final answer
    x = 16,260.86

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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.