Home / 23,681.12-32,678.20-13,609.56

Finding the Fourth Proportional to 23,681.12, 32,678.20 and 13,609.56

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Solution

The fourth proportional to 23,681.12, 32,678.20 and 13,609.56 is: 18,780.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,681.12 : 32,678.20 = 13,609.56 : x
  2. Step 2: Convert to fraction form
    23,681.12/32,678.20 = 13,609.56/x
  3. Step 3: Cross multiply
    23,681.12x = 32,678.20 × 13,609.56
  4. Step 4: Simplify right side
    23,681.12x = 444,735,923.59
  5. Step 5: Solve for x
    x = 444,735,923.59/23,681.12
  6. Step 6: Final answer
    x = 18,780.19

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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.