Home / 21,199.24-29,255.07-13,246.08

Finding the Fourth Proportional to 21,199.24, 29,255.07 and 13,246.08

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Solution

The fourth proportional to 21,199.24, 29,255.07 and 13,246.08 is: 18,279.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,199.24 : 29,255.07 = 13,246.08 : x
  2. Step 2: Convert to fraction form
    21,199.24/29,255.07 = 13,246.08/x
  3. Step 3: Cross multiply
    21,199.24x = 29,255.07 × 13,246.08
  4. Step 4: Simplify right side
    21,199.24x = 387,514,997.63
  5. Step 5: Solve for x
    x = 387,514,997.63/21,199.24
  6. Step 6: Final answer
    x = 18,279.66

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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.