Home / 21,089.69-31,634.54-5,507.18

Finding the Fourth Proportional to 21,089.69, 31,634.54 and 5,507.18

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Solution

The fourth proportional to 21,089.69, 31,634.54 and 5,507.18 is: 8,260.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,089.69 : 31,634.54 = 5,507.18 : x
  2. Step 2: Convert to fraction form
    21,089.69/31,634.54 = 5,507.18/x
  3. Step 3: Cross multiply
    21,089.69x = 31,634.54 × 5,507.18
  4. Step 4: Simplify right side
    21,089.69x = 174,217,106.00
  5. Step 5: Solve for x
    x = 174,217,106.00/21,089.69
  6. Step 6: Final answer
    x = 8,260.77

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Similar ratio
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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.