Home / 19,672.88-27,148.45-10,720.35

Finding the Fourth Proportional to 19,672.88, 27,148.45 and 10,720.35

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Solution

The fourth proportional to 19,672.88, 27,148.45 and 10,720.35 is: 14,794.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,672.88 : 27,148.45 = 10,720.35 : x
  2. Step 2: Convert to fraction form
    19,672.88/27,148.45 = 10,720.35/x
  3. Step 3: Cross multiply
    19,672.88x = 27,148.45 × 10,720.35
  4. Step 4: Simplify right side
    19,672.88x = 291,040,859.16
  5. Step 5: Solve for x
    x = 291,040,859.16/19,672.88
  6. Step 6: Final answer
    x = 14,794.02

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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.