Home / 21,873.66-30,116.07-19,078.14

Finding the Fourth Proportional to 21,873.66, 30,116.07 and 19,078.14

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Solution

The fourth proportional to 21,873.66, 30,116.07 and 19,078.14 is: 26,267.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,873.66 : 30,116.07 = 19,078.14 : x
  2. Step 2: Convert to fraction form
    21,873.66/30,116.07 = 19,078.14/x
  3. Step 3: Cross multiply
    21,873.66x = 30,116.07 × 19,078.14
  4. Step 4: Simplify right side
    21,873.66x = 574,558,599.71
  5. Step 5: Solve for x
    x = 574,558,599.71/21,873.66
  6. Step 6: Final answer
    x = 26,267.15

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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.