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Finding the Fourth Proportional to 35,721, 53,577.38 and 9,427.79

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Solution

The fourth proportional to 35,721, 53,577.38 and 9,427.79 is: 14,140.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,721 : 53,577.38 = 9,427.79 : x
  2. Step 2: Convert to fraction form
    35,721/53,577.38 = 9,427.79/x
  3. Step 3: Cross multiply
    35,721x = 53,577.38 × 9,427.79
  4. Step 4: Simplify right side
    35,721x = 505,116,444.90
  5. Step 5: Solve for x
    x = 505,116,444.90/35,721
  6. Step 6: Final answer
    x = 14,140.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.