Home / 22,638.23-31,235.19-13,565.05

Finding the Fourth Proportional to 22,638.23, 31,235.19 and 13,565.05

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Solution

The fourth proportional to 22,638.23, 31,235.19 and 13,565.05 is: 18,716.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,638.23 : 31,235.19 = 13,565.05 : x
  2. Step 2: Convert to fraction form
    22,638.23/31,235.19 = 13,565.05/x
  3. Step 3: Cross multiply
    22,638.23x = 31,235.19 × 13,565.05
  4. Step 4: Simplify right side
    22,638.23x = 423,706,785.15
  5. Step 5: Solve for x
    x = 423,706,785.15/22,638.23
  6. Step 6: Final answer
    x = 18,716.43

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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.