Home / 19,930.68-27,503.64-10,977.84

Finding the Fourth Proportional to 19,930.68, 27,503.64 and 10,977.84

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Solution

The fourth proportional to 19,930.68, 27,503.64 and 10,977.84 is: 15,149.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930.68 : 27,503.64 = 10,977.84 : x
  2. Step 2: Convert to fraction form
    19,930.68/27,503.64 = 10,977.84/x
  3. Step 3: Cross multiply
    19,930.68x = 27,503.64 × 10,977.84
  4. Step 4: Simplify right side
    19,930.68x = 301,930,559.34
  5. Step 5: Solve for x
    x = 301,930,559.34/19,930.68
  6. Step 6: Final answer
    x = 15,149.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.