Home / 19,921.90-27,492.67-10,969.58

Finding the Fourth Proportional to 19,921.90, 27,492.67 and 10,969.58

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Solution

The fourth proportional to 19,921.90, 27,492.67 and 10,969.58 is: 15,138.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,921.90 : 27,492.67 = 10,969.58 : x
  2. Step 2: Convert to fraction form
    19,921.90/27,492.67 = 10,969.58/x
  3. Step 3: Cross multiply
    19,921.90x = 27,492.67 × 10,969.58
  4. Step 4: Simplify right side
    19,921.90x = 301,583,042.98
  5. Step 5: Solve for x
    x = 301,583,042.98/19,921.90
  6. Step 6: Final answer
    x = 15,138.27

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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.