Home / 38,686.80-53,391.24-22,763.28

Finding the Fourth Proportional to 38,686.80, 53,391.24 and 22,763.28

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Solution

The fourth proportional to 38,686.80, 53,391.24 and 22,763.28 is: 31,415.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,686.80 : 53,391.24 = 22,763.28 : x
  2. Step 2: Convert to fraction form
    38,686.80/53,391.24 = 22,763.28/x
  3. Step 3: Cross multiply
    38,686.80x = 53,391.24 × 22,763.28
  4. Step 4: Simplify right side
    38,686.80x = 1,215,359,745.67
  5. Step 5: Solve for x
    x = 1,215,359,745.67/38,686.80
  6. Step 6: Final answer
    x = 31,415.36

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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.