Home / 19,830.88-27,370.74-18,235.00

Finding the Fourth Proportional to 19,830.88, 27,370.74 and 18,235.00

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Solution

The fourth proportional to 19,830.88, 27,370.74 and 18,235.00 is: 25,168.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.88 : 27,370.74 = 18,235.00 : x
  2. Step 2: Convert to fraction form
    19,830.88/27,370.74 = 18,235.00/x
  3. Step 3: Cross multiply
    19,830.88x = 27,370.74 × 18,235.00
  4. Step 4: Simplify right side
    19,830.88x = 499,105,315.66
  5. Step 5: Solve for x
    x = 499,105,315.66/19,830.88
  6. Step 6: Final answer
    x = 25,168.09

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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.