Home / 21,089.19-31,633.79-5,506.68

Finding the Fourth Proportional to 21,089.19, 31,633.79 and 5,506.68

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Solution

The fourth proportional to 21,089.19, 31,633.79 and 5,506.68 is: 8,260.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,089.19 : 31,633.79 = 5,506.68 : x
  2. Step 2: Convert to fraction form
    21,089.19/31,633.79 = 5,506.68/x
  3. Step 3: Cross multiply
    21,089.19x = 31,633.79 × 5,506.68
  4. Step 4: Simplify right side
    21,089.19x = 174,197,158.72
  5. Step 5: Solve for x
    x = 174,197,158.72/21,089.19
  6. Step 6: Final answer
    x = 8,260.02

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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.