Home / 23,186.16-31,996.80-12,575.76

Finding the Fourth Proportional to 23,186.16, 31,996.80 and 12,575.76

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Solution

The fourth proportional to 23,186.16, 31,996.80 and 12,575.76 is: 17,354.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,186.16 : 31,996.80 = 12,575.76 : x
  2. Step 2: Convert to fraction form
    23,186.16/31,996.80 = 12,575.76/x
  3. Step 3: Cross multiply
    23,186.16x = 31,996.80 × 12,575.76
  4. Step 4: Simplify right side
    23,186.16x = 402,384,077.57
  5. Step 5: Solve for x
    x = 402,384,077.57/23,186.16
  6. Step 6: Final answer
    x = 17,354.49

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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.