Home / 20,427.54-30,649.82-10,569.03

Finding the Fourth Proportional to 20,427.54, 30,649.82 and 10,569.03

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Solution

The fourth proportional to 20,427.54, 30,649.82 and 10,569.03 is: 15,857.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,427.54 : 30,649.82 = 10,569.03 : x
  2. Step 2: Convert to fraction form
    20,427.54/30,649.82 = 10,569.03/x
  3. Step 3: Cross multiply
    20,427.54x = 30,649.82 × 10,569.03
  4. Step 4: Simplify right side
    20,427.54x = 323,938,814.23
  5. Step 5: Solve for x
    x = 323,938,814.23/20,427.54
  6. Step 6: Final answer
    x = 15,857.95

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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.