Home / 20,677.33-31,028.15-7,530.49

Finding the Fourth Proportional to 20,677.33, 31,028.15 and 7,530.49

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Solution

The fourth proportional to 20,677.33, 31,028.15 and 7,530.49 is: 11,300.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.33 : 31,028.15 = 7,530.49 : x
  2. Step 2: Convert to fraction form
    20,677.33/31,028.15 = 7,530.49/x
  3. Step 3: Cross multiply
    20,677.33x = 31,028.15 × 7,530.49
  4. Step 4: Simplify right side
    20,677.33x = 233,657,135.64
  5. Step 5: Solve for x
    x = 233,657,135.64/20,677.33
  6. Step 6: Final answer
    x = 11,300.16

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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.