Home / 19,940.31-27,529.07-13,235.00

Finding the Fourth Proportional to 19,940.31, 27,529.07 and 13,235.00

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Solution

The fourth proportional to 19,940.31, 27,529.07 and 13,235.00 is: 18,271.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.31 : 27,529.07 = 13,235.00 : x
  2. Step 2: Convert to fraction form
    19,940.31/27,529.07 = 13,235.00/x
  3. Step 3: Cross multiply
    19,940.31x = 27,529.07 × 13,235.00
  4. Step 4: Simplify right side
    19,940.31x = 364,347,037.63
  5. Step 5: Solve for x
    x = 364,347,037.63/19,940.31
  6. Step 6: Final answer
    x = 18,271.88

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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.