Home / 35,090.72-52,656.82-12,919.64

Finding the Fourth Proportional to 35,090.72, 52,656.82 and 12,919.64

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Solution

The fourth proportional to 35,090.72, 52,656.82 and 12,919.64 is: 19,387.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,090.72 : 52,656.82 = 12,919.64 : x
  2. Step 2: Convert to fraction form
    35,090.72/52,656.82 = 12,919.64/x
  3. Step 3: Cross multiply
    35,090.72x = 52,656.82 × 12,919.64
  4. Step 4: Simplify right side
    35,090.72x = 680,307,157.94
  5. Step 5: Solve for x
    x = 680,307,157.94/35,090.72
  6. Step 6: Final answer
    x = 19,387.10

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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.