Home / 21,447.34-29,590.22-12,946.22

Finding the Fourth Proportional to 21,447.34, 29,590.22 and 12,946.22

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Solution

The fourth proportional to 21,447.34, 29,590.22 and 12,946.22 is: 17,861.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,447.34 : 29,590.22 = 12,946.22 : x
  2. Step 2: Convert to fraction form
    21,447.34/29,590.22 = 12,946.22/x
  3. Step 3: Cross multiply
    21,447.34x = 29,590.22 × 12,946.22
  4. Step 4: Simplify right side
    21,447.34x = 383,081,497.97
  5. Step 5: Solve for x
    x = 383,081,497.97/21,447.34
  6. Step 6: Final answer
    x = 17,861.49

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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.