Home / 19,980.90-27,574.20-11,029.11

Finding the Fourth Proportional to 19,980.90, 27,574.20 and 11,029.11

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Solution

The fourth proportional to 19,980.90, 27,574.20 and 11,029.11 is: 15,220.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,980.90 : 27,574.20 = 11,029.11 : x
  2. Step 2: Convert to fraction form
    19,980.90/27,574.20 = 11,029.11/x
  3. Step 3: Cross multiply
    19,980.90x = 27,574.20 × 11,029.11
  4. Step 4: Simplify right side
    19,980.90x = 304,118,884.96
  5. Step 5: Solve for x
    x = 304,118,884.96/19,980.90
  6. Step 6: Final answer
    x = 15,220.48

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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.