Home / 22,776.36-31,438.38-13,347.96

Finding the Fourth Proportional to 22,776.36, 31,438.38 and 13,347.96

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Solution

The fourth proportional to 22,776.36, 31,438.38 and 13,347.96 is: 18,424.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,776.36 : 31,438.38 = 13,347.96 : x
  2. Step 2: Convert to fraction form
    22,776.36/31,438.38 = 13,347.96/x
  3. Step 3: Cross multiply
    22,776.36x = 31,438.38 × 13,347.96
  4. Step 4: Simplify right side
    22,776.36x = 419,638,238.70
  5. Step 5: Solve for x
    x = 419,638,238.70/22,776.36
  6. Step 6: Final answer
    x = 18,424.29

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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.