Home / 35,105.12-48,433.24-19,987.09

Finding the Fourth Proportional to 35,105.12, 48,433.24 and 19,987.09

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Solution

The fourth proportional to 35,105.12, 48,433.24 and 19,987.09 is: 27,575.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,105.12 : 48,433.24 = 19,987.09 : x
  2. Step 2: Convert to fraction form
    35,105.12/48,433.24 = 19,987.09/x
  3. Step 3: Cross multiply
    35,105.12x = 48,433.24 × 19,987.09
  4. Step 4: Simplify right side
    35,105.12x = 968,039,430.77
  5. Step 5: Solve for x
    x = 968,039,430.77/35,105.12
  6. Step 6: Final answer
    x = 27,575.45

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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.