Home / 19,989.65-29,955.31-11,227.07

Finding the Fourth Proportional to 19,989.65, 29,955.31 and 11,227.07

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Solution

The fourth proportional to 19,989.65, 29,955.31 and 11,227.07 is: 16,824.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,989.65 : 29,955.31 = 11,227.07 : x
  2. Step 2: Convert to fraction form
    19,989.65/29,955.31 = 11,227.07/x
  3. Step 3: Cross multiply
    19,989.65x = 29,955.31 × 11,227.07
  4. Step 4: Simplify right side
    19,989.65x = 336,310,362.24
  5. Step 5: Solve for x
    x = 336,310,362.24/19,989.65
  6. Step 6: Final answer
    x = 16,824.22

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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.