Home / 21,089.14-31,635.52-5,506.76

Finding the Fourth Proportional to 21,089.14, 31,635.52 and 5,506.76

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Solution

The fourth proportional to 21,089.14, 31,635.52 and 5,506.76 is: 8,260.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,089.14 : 31,635.52 = 5,506.76 : x
  2. Step 2: Convert to fraction form
    21,089.14/31,635.52 = 5,506.76/x
  3. Step 3: Cross multiply
    21,089.14x = 31,635.52 × 5,506.76
  4. Step 4: Simplify right side
    21,089.14x = 174,209,216.12
  5. Step 5: Solve for x
    x = 174,209,216.12/21,089.14
  6. Step 6: Final answer
    x = 8,260.61

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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.