Home / 20,937.57-31,410.62-18,846.36

Finding the Fourth Proportional to 20,937.57, 31,410.62 and 18,846.36

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Solution

The fourth proportional to 20,937.57, 31,410.62 and 18,846.36 is: 28,273.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,937.57 : 31,410.62 = 18,846.36 : x
  2. Step 2: Convert to fraction form
    20,937.57/31,410.62 = 18,846.36/x
  3. Step 3: Cross multiply
    20,937.57x = 31,410.62 × 18,846.36
  4. Step 4: Simplify right side
    20,937.57x = 591,975,758.11
  5. Step 5: Solve for x
    x = 591,975,758.11/20,937.57
  6. Step 6: Final answer
    x = 28,273.37

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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.