Home / 20,900.70-31,347.44-5,908.88

Finding the Fourth Proportional to 20,900.70, 31,347.44 and 5,908.88

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Solution

The fourth proportional to 20,900.70, 31,347.44 and 5,908.88 is: 8,862.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,900.70 : 31,347.44 = 5,908.88 : x
  2. Step 2: Convert to fraction form
    20,900.70/31,347.44 = 5,908.88/x
  3. Step 3: Cross multiply
    20,900.70x = 31,347.44 × 5,908.88
  4. Step 4: Simplify right side
    20,900.70x = 185,228,332.25
  5. Step 5: Solve for x
    x = 185,228,332.25/20,900.70
  6. Step 6: Final answer
    x = 8,862.30

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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.