Home / 17,421.50-24,025.38-13,436.30

Finding the Fourth Proportional to 17,421.50, 24,025.38 and 13,436.30

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Solution

The fourth proportional to 17,421.50, 24,025.38 and 13,436.30 is: 18,529.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,421.50 : 24,025.38 = 13,436.30 : x
  2. Step 2: Convert to fraction form
    17,421.50/24,025.38 = 13,436.30/x
  3. Step 3: Cross multiply
    17,421.50x = 24,025.38 × 13,436.30
  4. Step 4: Simplify right side
    17,421.50x = 322,812,213.29
  5. Step 5: Solve for x
    x = 322,812,213.29/17,421.50
  6. Step 6: Final answer
    x = 18,529.53

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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.