Home / 35,090.39-48,410.99-21,638.30

Finding the Fourth Proportional to 35,090.39, 48,410.99 and 21,638.30

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Solution

The fourth proportional to 35,090.39, 48,410.99 and 21,638.30 is: 29,852.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,090.39 : 48,410.99 = 21,638.30 : x
  2. Step 2: Convert to fraction form
    35,090.39/48,410.99 = 21,638.30/x
  3. Step 3: Cross multiply
    35,090.39x = 48,410.99 × 21,638.30
  4. Step 4: Simplify right side
    35,090.39x = 1,047,531,174.67
  5. Step 5: Solve for x
    x = 1,047,531,174.67/35,090.39
  6. Step 6: Final answer
    x = 29,852.36

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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.