Home / 20,980.62-31,614.40-17,362.62

Finding the Fourth Proportional to 20,980.62, 31,614.40 and 17,362.62

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Solution

The fourth proportional to 20,980.62, 31,614.40 and 17,362.62 is: 26,162.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,980.62 : 31,614.40 = 17,362.62 : x
  2. Step 2: Convert to fraction form
    20,980.62/31,614.40 = 17,362.62/x
  3. Step 3: Cross multiply
    20,980.62x = 31,614.40 × 17,362.62
  4. Step 4: Simplify right side
    20,980.62x = 548,908,813.73
  5. Step 5: Solve for x
    x = 548,908,813.73/20,980.62
  6. Step 6: Final answer
    x = 26,162.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.