Home / 22,811.68-31,476.99-12,738.84

Finding the Fourth Proportional to 22,811.68, 31,476.99 and 12,738.84

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Solution

The fourth proportional to 22,811.68, 31,476.99 and 12,738.84 is: 17,577.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,811.68 : 31,476.99 = 12,738.84 : x
  2. Step 2: Convert to fraction form
    22,811.68/31,476.99 = 12,738.84/x
  3. Step 3: Cross multiply
    22,811.68x = 31,476.99 × 12,738.84
  4. Step 4: Simplify right side
    22,811.68x = 400,980,269.02
  5. Step 5: Solve for x
    x = 400,980,269.02/22,811.68
  6. Step 6: Final answer
    x = 17,577.85

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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.