Home / 22,617.07-31,207.82-12,543.91

Finding the Fourth Proportional to 22,617.07, 31,207.82 and 12,543.91

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Solution

The fourth proportional to 22,617.07, 31,207.82 and 12,543.91 is: 17,308.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,617.07 : 31,207.82 = 12,543.91 : x
  2. Step 2: Convert to fraction form
    22,617.07/31,207.82 = 12,543.91/x
  3. Step 3: Cross multiply
    22,617.07x = 31,207.82 × 12,543.91
  4. Step 4: Simplify right side
    22,617.07x = 391,467,944.64
  5. Step 5: Solve for x
    x = 391,467,944.64/22,617.07
  6. Step 6: Final answer
    x = 17,308.52

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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.