Home / 19,666.58-27,149.72-15,410.43

Finding the Fourth Proportional to 19,666.58, 27,149.72 and 15,410.43

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Solution

The fourth proportional to 19,666.58, 27,149.72 and 15,410.43 is: 21,274.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,666.58 : 27,149.72 = 15,410.43 : x
  2. Step 2: Convert to fraction form
    19,666.58/27,149.72 = 15,410.43/x
  3. Step 3: Cross multiply
    19,666.58x = 27,149.72 × 15,410.43
  4. Step 4: Simplify right side
    19,666.58x = 418,388,782.53
  5. Step 5: Solve for x
    x = 418,388,782.53/19,666.58
  6. Step 6: Final answer
    x = 21,274.11

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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.