Home / 21,224.86-29,311.53-17,485.09

Finding the Fourth Proportional to 21,224.86, 29,311.53 and 17,485.09

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Solution

The fourth proportional to 21,224.86, 29,311.53 and 17,485.09 is: 24,146.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,224.86 : 29,311.53 = 17,485.09 : x
  2. Step 2: Convert to fraction form
    21,224.86/29,311.53 = 17,485.09/x
  3. Step 3: Cross multiply
    21,224.86x = 29,311.53 × 17,485.09
  4. Step 4: Simplify right side
    21,224.86x = 512,514,740.09
  5. Step 5: Solve for x
    x = 512,514,740.09/21,224.86
  6. Step 6: Final answer
    x = 24,146.91

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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.