Home / 38,856.25-53,621.51-21,860.49

Finding the Fourth Proportional to 38,856.25, 53,621.51 and 21,860.49

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Solution

The fourth proportional to 38,856.25, 53,621.51 and 21,860.49 is: 30,167.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,856.25 : 53,621.51 = 21,860.49 : x
  2. Step 2: Convert to fraction form
    38,856.25/53,621.51 = 21,860.49/x
  3. Step 3: Cross multiply
    38,856.25x = 53,621.51 × 21,860.49
  4. Step 4: Simplify right side
    38,856.25x = 1,172,192,537.79
  5. Step 5: Solve for x
    x = 1,172,192,537.79/38,856.25
  6. Step 6: Final answer
    x = 30,167.41

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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.