Home / 54,857.68-82,289.38-17,420.70

Finding the Fourth Proportional to 54,857.68, 82,289.38 and 17,420.70

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Solution

The fourth proportional to 54,857.68, 82,289.38 and 17,420.70 is: 26,131.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,857.68 : 82,289.38 = 17,420.70 : x
  2. Step 2: Convert to fraction form
    54,857.68/82,289.38 = 17,420.70/x
  3. Step 3: Cross multiply
    54,857.68x = 82,289.38 × 17,420.70
  4. Step 4: Simplify right side
    54,857.68x = 1,433,538,602.17
  5. Step 5: Solve for x
    x = 1,433,538,602.17/54,857.68
  6. Step 6: Final answer
    x = 26,131.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.