Home / 22,291.51-30,761.36-13,333.72

Finding the Fourth Proportional to 22,291.51, 30,761.36 and 13,333.72

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Solution

The fourth proportional to 22,291.51, 30,761.36 and 13,333.72 is: 18,399.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,291.51 : 30,761.36 = 13,333.72 : x
  2. Step 2: Convert to fraction form
    22,291.51/30,761.36 = 13,333.72/x
  3. Step 3: Cross multiply
    22,291.51x = 30,761.36 × 13,333.72
  4. Step 4: Simplify right side
    22,291.51x = 410,163,361.06
  5. Step 5: Solve for x
    x = 410,163,361.06/22,291.51
  6. Step 6: Final answer
    x = 18,399.98

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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.