Home / 19,740.45-27,240.68-10,788.03

Finding the Fourth Proportional to 19,740.45, 27,240.68 and 10,788.03

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Solution

The fourth proportional to 19,740.45, 27,240.68 and 10,788.03 is: 14,886.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.45 : 27,240.68 = 10,788.03 : x
  2. Step 2: Convert to fraction form
    19,740.45/27,240.68 = 10,788.03/x
  3. Step 3: Cross multiply
    19,740.45x = 27,240.68 × 10,788.03
  4. Step 4: Simplify right side
    19,740.45x = 293,873,273.06
  5. Step 5: Solve for x
    x = 293,873,273.06/19,740.45
  6. Step 6: Final answer
    x = 14,886.86

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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.