Home / 19,729.90-27,227.72-10,777.32

Finding the Fourth Proportional to 19,729.90, 27,227.72 and 10,777.32

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Solution

The fourth proportional to 19,729.90, 27,227.72 and 10,777.32 is: 14,872.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,729.90 : 27,227.72 = 10,777.32 : x
  2. Step 2: Convert to fraction form
    19,729.90/27,227.72 = 10,777.32/x
  3. Step 3: Cross multiply
    19,729.90x = 27,227.72 × 10,777.32
  4. Step 4: Simplify right side
    19,729.90x = 293,441,851.31
  5. Step 5: Solve for x
    x = 293,441,851.31/19,729.90
  6. Step 6: Final answer
    x = 14,872.95

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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.