Home / 38,185.72-52,695.65-21,418.36

Finding the Fourth Proportional to 38,185.72, 52,695.65 and 21,418.36

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Solution

The fourth proportional to 38,185.72, 52,695.65 and 21,418.36 is: 29,556.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,185.72 : 52,695.65 = 21,418.36 : x
  2. Step 2: Convert to fraction form
    38,185.72/52,695.65 = 21,418.36/x
  3. Step 3: Cross multiply
    38,185.72x = 52,695.65 × 21,418.36
  4. Step 4: Simplify right side
    38,185.72x = 1,128,654,402.13
  5. Step 5: Solve for x
    x = 1,128,654,402.13/38,185.72
  6. Step 6: Final answer
    x = 29,556.98

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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.