Home / 19,772.69-27,286.30-10,820.18

Finding the Fourth Proportional to 19,772.69, 27,286.30 and 10,820.18

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Solution

The fourth proportional to 19,772.69, 27,286.30 and 10,820.18 is: 14,931.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.69 : 27,286.30 = 10,820.18 : x
  2. Step 2: Convert to fraction form
    19,772.69/27,286.30 = 10,820.18/x
  3. Step 3: Cross multiply
    19,772.69x = 27,286.30 × 10,820.18
  4. Step 4: Simplify right side
    19,772.69x = 295,242,623.43
  5. Step 5: Solve for x
    x = 295,242,623.43/19,772.69
  6. Step 6: Final answer
    x = 14,931.84

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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.