Home / 20,750.98-31,126.44-7,604.36

Finding the Fourth Proportional to 20,750.98, 31,126.44 and 7,604.36

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Solution

The fourth proportional to 20,750.98, 31,126.44 and 7,604.36 is: 11,406.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750.98 : 31,126.44 = 7,604.36 : x
  2. Step 2: Convert to fraction form
    20,750.98/31,126.44 = 7,604.36/x
  3. Step 3: Cross multiply
    20,750.98x = 31,126.44 × 7,604.36
  4. Step 4: Simplify right side
    20,750.98x = 236,696,655.28
  5. Step 5: Solve for x
    x = 236,696,655.28/20,750.98
  6. Step 6: Final answer
    x = 11,406.53

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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.