Home / 38,618.83-53,291.14-21,619.16

Finding the Fourth Proportional to 38,618.83, 53,291.14 and 21,619.16

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Solution

The fourth proportional to 38,618.83, 53,291.14 and 21,619.16 is: 29,832.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,618.83 : 53,291.14 = 21,619.16 : x
  2. Step 2: Convert to fraction form
    38,618.83/53,291.14 = 21,619.16/x
  3. Step 3: Cross multiply
    38,618.83x = 53,291.14 × 21,619.16
  4. Step 4: Simplify right side
    38,618.83x = 1,152,109,682.24
  5. Step 5: Solve for x
    x = 1,152,109,682.24/38,618.83
  6. Step 6: Final answer
    x = 29,832.85

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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.