Home / 19,999.19-29,989.00-11,681.30

Finding the Fourth Proportional to 19,999.19, 29,989.00 and 11,681.30

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Solution

The fourth proportional to 19,999.19, 29,989.00 and 11,681.30 is: 17,516.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,999.19 : 29,989.00 = 11,681.30 : x
  2. Step 2: Convert to fraction form
    19,999.19/29,989.00 = 11,681.30/x
  3. Step 3: Cross multiply
    19,999.19x = 29,989.00 × 11,681.30
  4. Step 4: Simplify right side
    19,999.19x = 350,310,585.80
  5. Step 5: Solve for x
    x = 350,310,585.80/19,999.19
  6. Step 6: Final answer
    x = 17,516.23

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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.