Home / 21,864.96-30,137.60-16,535.04

Finding the Fourth Proportional to 21,864.96, 30,137.60 and 16,535.04

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Solution

The fourth proportional to 21,864.96, 30,137.60 and 16,535.04 is: 22,791.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,864.96 : 30,137.60 = 16,535.04 : x
  2. Step 2: Convert to fraction form
    21,864.96/30,137.60 = 16,535.04/x
  3. Step 3: Cross multiply
    21,864.96x = 30,137.60 × 16,535.04
  4. Step 4: Simplify right side
    21,864.96x = 498,326,421.50
  5. Step 5: Solve for x
    x = 498,326,421.50/21,864.96
  6. Step 6: Final answer
    x = 22,791.10

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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.