Home / 20,937.88-31,410.06-13,034.31

Finding the Fourth Proportional to 20,937.88, 31,410.06 and 13,034.31

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Solution

The fourth proportional to 20,937.88, 31,410.06 and 13,034.31 is: 19,553.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,937.88 : 31,410.06 = 13,034.31 : x
  2. Step 2: Convert to fraction form
    20,937.88/31,410.06 = 13,034.31/x
  3. Step 3: Cross multiply
    20,937.88x = 31,410.06 × 13,034.31
  4. Step 4: Simplify right side
    20,937.88x = 409,408,459.16
  5. Step 5: Solve for x
    x = 409,408,459.16/20,937.88
  6. Step 6: Final answer
    x = 19,553.48

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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.