Home / 22,602.88-31,175.36-15,529.60

Finding the Fourth Proportional to 22,602.88, 31,175.36 and 15,529.60

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Solution

The fourth proportional to 22,602.88, 31,175.36 and 15,529.60 is: 21,419.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,602.88 : 31,175.36 = 15,529.60 : x
  2. Step 2: Convert to fraction form
    22,602.88/31,175.36 = 15,529.60/x
  3. Step 3: Cross multiply
    22,602.88x = 31,175.36 × 15,529.60
  4. Step 4: Simplify right side
    22,602.88x = 484,140,870.66
  5. Step 5: Solve for x
    x = 484,140,870.66/22,602.88
  6. Step 6: Final answer
    x = 21,419.43

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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.