Home / 21,492.18-29,659.44-12,416.94

Finding the Fourth Proportional to 21,492.18, 29,659.44 and 12,416.94

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Solution

The fourth proportional to 21,492.18, 29,659.44 and 12,416.94 is: 17,135.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,492.18 : 29,659.44 = 12,416.94 : x
  2. Step 2: Convert to fraction form
    21,492.18/29,659.44 = 12,416.94/x
  3. Step 3: Cross multiply
    21,492.18x = 29,659.44 × 12,416.94
  4. Step 4: Simplify right side
    21,492.18x = 368,279,486.91
  5. Step 5: Solve for x
    x = 368,279,486.91/21,492.18
  6. Step 6: Final answer
    x = 17,135.51

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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.