Home / 21,492.14-29,659.74-12,061.28

Finding the Fourth Proportional to 21,492.14, 29,659.74 and 12,061.28

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Solution

The fourth proportional to 21,492.14, 29,659.74 and 12,061.28 is: 16,644.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,492.14 : 29,659.74 = 12,061.28 : x
  2. Step 2: Convert to fraction form
    21,492.14/29,659.74 = 12,061.28/x
  3. Step 3: Cross multiply
    21,492.14x = 29,659.74 × 12,061.28
  4. Step 4: Simplify right side
    21,492.14x = 357,734,428.87
  5. Step 5: Solve for x
    x = 357,734,428.87/21,492.14
  6. Step 6: Final answer
    x = 16,644.90

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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.