Home / 21,256.18-29,329.53-11,824.75

Finding the Fourth Proportional to 21,256.18, 29,329.53 and 11,824.75

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Solution

The fourth proportional to 21,256.18, 29,329.53 and 11,824.75 is: 16,315.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,256.18 : 29,329.53 = 11,824.75 : x
  2. Step 2: Convert to fraction form
    21,256.18/29,329.53 = 11,824.75/x
  3. Step 3: Cross multiply
    21,256.18x = 29,329.53 × 11,824.75
  4. Step 4: Simplify right side
    21,256.18x = 346,814,359.87
  5. Step 5: Solve for x
    x = 346,814,359.87/21,256.18
  6. Step 6: Final answer
    x = 16,315.93

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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.