Home / 21,176.84-29,226.99-12,224.18

Finding the Fourth Proportional to 21,176.84, 29,226.99 and 12,224.18

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Solution

The fourth proportional to 21,176.84, 29,226.99 and 12,224.18 is: 16,871.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,176.84 : 29,226.99 = 12,224.18 : x
  2. Step 2: Convert to fraction form
    21,176.84/29,226.99 = 12,224.18/x
  3. Step 3: Cross multiply
    21,176.84x = 29,226.99 × 12,224.18
  4. Step 4: Simplify right side
    21,176.84x = 357,276,105.53
  5. Step 5: Solve for x
    x = 357,276,105.53/21,176.84
  6. Step 6: Final answer
    x = 16,871.08

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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.