Home / 19,730.18-27,220.57-11,662.14

Finding the Fourth Proportional to 19,730.18, 27,220.57 and 11,662.14

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Solution

The fourth proportional to 19,730.18, 27,220.57 and 11,662.14 is: 16,089.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,730.18 : 27,220.57 = 11,662.14 : x
  2. Step 2: Convert to fraction form
    19,730.18/27,220.57 = 11,662.14/x
  3. Step 3: Cross multiply
    19,730.18x = 27,220.57 × 11,662.14
  4. Step 4: Simplify right side
    19,730.18x = 317,450,069.06
  5. Step 5: Solve for x
    x = 317,450,069.06/19,730.18
  6. Step 6: Final answer
    x = 16,089.57

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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.