Home / 19,665.46-27,140.52-12,110.30

Finding the Fourth Proportional to 19,665.46, 27,140.52 and 12,110.30

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Solution

The fourth proportional to 19,665.46, 27,140.52 and 12,110.30 is: 16,713.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,665.46 : 27,140.52 = 12,110.30 : x
  2. Step 2: Convert to fraction form
    19,665.46/27,140.52 = 12,110.30/x
  3. Step 3: Cross multiply
    19,665.46x = 27,140.52 × 12,110.30
  4. Step 4: Simplify right side
    19,665.46x = 328,679,839.36
  5. Step 5: Solve for x
    x = 328,679,839.36/19,665.46
  6. Step 6: Final answer
    x = 16,713.56

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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.