Home / 22,655.62-31,267.21-13,708.06

Finding the Fourth Proportional to 22,655.62, 31,267.21 and 13,708.06

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Solution

The fourth proportional to 22,655.62, 31,267.21 and 13,708.06 is: 18,918.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,655.62 : 31,267.21 = 13,708.06 : x
  2. Step 2: Convert to fraction form
    22,655.62/31,267.21 = 13,708.06/x
  3. Step 3: Cross multiply
    22,655.62x = 31,267.21 × 13,708.06
  4. Step 4: Simplify right side
    22,655.62x = 428,612,703.98
  5. Step 5: Solve for x
    x = 428,612,703.98/22,655.62
  6. Step 6: Final answer
    x = 18,918.60

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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.