Home / 22,453.11-30,985.51-12,381.91

Finding the Fourth Proportional to 22,453.11, 30,985.51 and 12,381.91

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Solution

The fourth proportional to 22,453.11, 30,985.51 and 12,381.91 is: 17,087.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,453.11 : 30,985.51 = 12,381.91 : x
  2. Step 2: Convert to fraction form
    22,453.11/30,985.51 = 12,381.91/x
  3. Step 3: Cross multiply
    22,453.11x = 30,985.51 × 12,381.91
  4. Step 4: Simplify right side
    22,453.11x = 383,659,827.08
  5. Step 5: Solve for x
    x = 383,659,827.08/22,453.11
  6. Step 6: Final answer
    x = 17,087.16

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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.