Home / 19,771.53-27,284.36-10,818.87

Finding the Fourth Proportional to 19,771.53, 27,284.36 and 10,818.87

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Solution

The fourth proportional to 19,771.53, 27,284.36 and 10,818.87 is: 14,929.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,771.53 : 27,284.36 = 10,818.87 : x
  2. Step 2: Convert to fraction form
    19,771.53/27,284.36 = 10,818.87/x
  3. Step 3: Cross multiply
    19,771.53x = 27,284.36 × 10,818.87
  4. Step 4: Simplify right side
    19,771.53x = 295,185,889.78
  5. Step 5: Solve for x
    x = 295,185,889.78/19,771.53
  6. Step 6: Final answer
    x = 14,929.85

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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.