Home / 38,854.08-53,618.56-21,858.34

Finding the Fourth Proportional to 38,854.08, 53,618.56 and 21,858.34

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Solution

The fourth proportional to 38,854.08, 53,618.56 and 21,858.34 is: 30,164.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,854.08 : 53,618.56 = 21,858.34 : x
  2. Step 2: Convert to fraction form
    38,854.08/53,618.56 = 21,858.34/x
  3. Step 3: Cross multiply
    38,854.08x = 53,618.56 × 21,858.34
  4. Step 4: Simplify right side
    38,854.08x = 1,172,012,714.79
  5. Step 5: Solve for x
    x = 1,172,012,714.79/38,854.08
  6. Step 6: Final answer
    x = 30,164.47

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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.