Home / 22,636.06-31,235.20-12,561.88

Finding the Fourth Proportional to 22,636.06, 31,235.20 and 12,561.88

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Solution

The fourth proportional to 22,636.06, 31,235.20 and 12,561.88 is: 17,333.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,636.06 : 31,235.20 = 12,561.88 : x
  2. Step 2: Convert to fraction form
    22,636.06/31,235.20 = 12,561.88/x
  3. Step 3: Cross multiply
    22,636.06x = 31,235.20 × 12,561.88
  4. Step 4: Simplify right side
    22,636.06x = 392,372,834.18
  5. Step 5: Solve for x
    x = 392,372,834.18/22,636.06
  6. Step 6: Final answer
    x = 17,333.97

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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.