Home / 19,900.88-29,777.69-12,007.97

Finding the Fourth Proportional to 19,900.88, 29,777.69 and 12,007.97

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Solution

The fourth proportional to 19,900.88, 29,777.69 and 12,007.97 is: 17,967.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,900.88 : 29,777.69 = 12,007.97 : x
  2. Step 2: Convert to fraction form
    19,900.88/29,777.69 = 12,007.97/x
  3. Step 3: Cross multiply
    19,900.88x = 29,777.69 × 12,007.97
  4. Step 4: Simplify right side
    19,900.88x = 357,569,399.26
  5. Step 5: Solve for x
    x = 357,569,399.26/19,900.88
  6. Step 6: Final answer
    x = 17,967.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.