Home / 19,772.64-27,286.26-10,820.12

Finding the Fourth Proportional to 19,772.64, 27,286.26 and 10,820.12

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Solution

The fourth proportional to 19,772.64, 27,286.26 and 10,820.12 is: 14,931.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.64 : 27,286.26 = 10,820.12 : x
  2. Step 2: Convert to fraction form
    19,772.64/27,286.26 = 10,820.12/x
  3. Step 3: Cross multiply
    19,772.64x = 27,286.26 × 10,820.12
  4. Step 4: Simplify right side
    19,772.64x = 295,240,607.55
  5. Step 5: Solve for x
    x = 295,240,607.55/19,772.64
  6. Step 6: Final answer
    x = 14,931.77

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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.