Home / 38,812.25-53,560.91-21,148.25

Finding the Fourth Proportional to 38,812.25, 53,560.91 and 21,148.25

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Solution

The fourth proportional to 38,812.25, 53,560.91 and 21,148.25 is: 29,184.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,812.25 : 53,560.91 = 21,148.25 : x
  2. Step 2: Convert to fraction form
    38,812.25/53,560.91 = 21,148.25/x
  3. Step 3: Cross multiply
    38,812.25x = 53,560.91 × 21,148.25
  4. Step 4: Simplify right side
    38,812.25x = 1,132,719,514.91
  5. Step 5: Solve for x
    x = 1,132,719,514.91/38,812.25
  6. Step 6: Final answer
    x = 29,184.59

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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.