Home / 19,621.14-27,065.16-18,308.94

Finding the Fourth Proportional to 19,621.14, 27,065.16 and 18,308.94

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Solution

The fourth proportional to 19,621.14, 27,065.16 and 18,308.94 is: 25,255.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,621.14 : 27,065.16 = 18,308.94 : x
  2. Step 2: Convert to fraction form
    19,621.14/27,065.16 = 18,308.94/x
  3. Step 3: Cross multiply
    19,621.14x = 27,065.16 × 18,308.94
  4. Step 4: Simplify right side
    19,621.14x = 495,534,390.53
  5. Step 5: Solve for x
    x = 495,534,390.53/19,621.14
  6. Step 6: Final answer
    x = 25,255.13

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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.