Home / 20,458.21-30,537.96-17,555.17

Finding the Fourth Proportional to 20,458.21, 30,537.96 and 17,555.17

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Solution

The fourth proportional to 20,458.21, 30,537.96 and 17,555.17 is: 26,204.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458.21 : 30,537.96 = 17,555.17 : x
  2. Step 2: Convert to fraction form
    20,458.21/30,537.96 = 17,555.17/x
  3. Step 3: Cross multiply
    20,458.21x = 30,537.96 × 17,555.17
  4. Step 4: Simplify right side
    20,458.21x = 536,099,123.14
  5. Step 5: Solve for x
    x = 536,099,123.14/20,458.21
  6. Step 6: Final answer
    x = 26,204.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.